Houston, “Eagle” has landed

Imagine yourself walking out of a lunar module “Eagle” on July, 21st 1969 and stepping on the surface of the Moon. What would be your first words? What would you like to do while performing EVA?
Andrew Rader (SpaceX engineer, MIT PhD, author)

Neil had 3 full days to think about what to say on his trip to the Moon, probably months before that, and a potentially a NASA PR team working on the problem. I’d be hard pressed to come up with something better. Something like: “Hello Moon, greetings from planet Earth. Thanks for all you’ve done for us, from inspiring our dreams when we look up a night, to stabilizing our planet’s spin, to driving our ocean tides. We’re glad you’re here, and now we are too.”

Paul Carr (Space Systems engineer at NASA, podcaster, blogger, investigator)

I was 11 years old when Neil Armstrong walked out onto the moon, and I remember being deeply envious of him. I had no idea of the depth and duration of training required of astronauts, or the complexity of their equipment, and I even had a silly fantasy about stowing away on a the rocket.

If it had been me, I think I would have resisted delivering a scripted line, and instead would have blurted out something like “look at me! I’m on the moon!”. I’m sure it would have been nothing quotable. If I were free to do whatever I wanted on the EVA, my priorities would be running, jumping, and throwing things (I was 11!). I would have wanted to scale the nearest hill, thinking it would be easy to exploit the low gravity of the moon. Of course, I would have also put all kinds of rocks in my pockets.

Ciro Villa (technologist, application developer, STEM communicator)

After the Apollo era, men haven’t returned to the Moon in now almost 45 years. Humans are long overdue for a return to the lunar surface, which could provide tremendous opportunities to act as a “launchpad” to the rest of space. If I had the unique and historical opportunity to be that first man stepping out on the surface of the Moon, I would probably be speechless and have no words at all.

During my EVA I’d like to satisfy spirit, body, and mind. The human spirit will be in awe at the incredible sight of an “alien” landscape and scenery and the realization that I am on a rock located about 384,000 km from our home, the Earth. The body would be experiencing the lower gravity and have fun hopping around. The mind would be involved in any science possible and work on the mission at hand, hoping that whatever advancement is made will benefit the rest of humanity.

Robert Novella (co-founder and vice-president of New England Skeptical Society, co-host of Skeptics’ Guide to the Universe)

If I were the first to set foot on the moon It would be hard to beat the iconic words of Neal Armstrong, except by having them heard as was actually intended of course…”One small step for “A” man, One giant leap for mankind.”

I’ve often thought that it would have been cool if both Neal Armstrong and that other dude (what was his name? ;)) both jumped and took that first step together.

My first words would probably be “holy crap”. If I were able to rein in my emotions, perhaps I’d say something like “This first ever human footprint on the moon….brought to you by SCIENCE”

During the EVA I would thoroughly enjoy the sensation of moon gravity. I’d lift the biggest boulders I could manage and leap as far as possible. I’d throw small rocks and hands-full of regolith and watch their trajectory and descent. I’d look at the camera and say “See that? You can’t fake physics like that on a stupid set on earth”

“Three Great Astronomy Discoveries I Didn’t Make” by Paul Carr

I have a little training in astronomy, although I can hardly call myself a professional. Becoming a professional at anything is a long, hard road, one I haven’t traveled far down in astronomy. No, I’m decidedly an amateur, and not a highly accomplished amateur at that.

Sadly, the word “amateur” has been cheapened a bit by modern use. It doesn’t really mean inexpert dabbler (although I will cop to that), but “lover.” An amateur does what they do for the love of it, and there are many highly knowledgeable and skilled amateur astronomers who do real science. Far from earning a living at astronomy, amateurs spend considerable sums of their own money – for love. If you are reading this, you probably understand why. The night sky and the cosmos at large combines natural beauty and profound fascination as few other things we can all experience.

In our time, nearly any object – save perhaps the odd undiscovered comet or asteroid – that is accessible to amateur equipment has already been imaged at multiple wavelengths using professional instruments. Sensitive astronomical surveys have been performed and are being performed on a regular basis, and have been for many generations, going back for more than two thousand years to the great Greek astronomer Hipparchus, who since had a major modern catalog named after him.

Since ancient times, the proliferation of astronomical catalogs and atlases has accelerated – from John Flamsteed’s sky atlas, to the 19th century Bonner Durchmusterung, to the Henry Draper catalog, to the US Naval Observatory’s catalog based upon the Palomar Observatory’s photographic sky survey, to the Hubble Guide Star catalog, up until the present, with the Gaia Source List containing more than a billion objects. What is remarkable about this accelerating growth is not only the number of catalogs and the broader coverage of the electromagnetic spectrum, but also the fact that they are now accessible to anyone, and you can also access images from many of these surveys. You no longer need a good university library and stacks of bound volumes to find the information you want.

I should point out that you can do meaningful citizen science at sites like Cosmoquest or Galaxy Zoo, but this does not mean that you can’t poke around at random in the vast library of astronomical knowledge and try to answer your own questions. I do this – and I return from my wanderings  with more questions, and so far, no answers.

Boyajian’s Star

In 2015, when the paper describing Boyajian’s Star and its bizarre lightcurve was first made public on Arxiv, I was curious about what was known about the immediate neighborhood in that patch of sky in the constellation Cygnus. To investigate this, I used a free tool called the Aladin Sky Atlas, provided by the University of Strasbourg in France. Aladin, with a modest learning curve, allows you to overlay many of the most widely used catalogs and image libraries. For example, if you just open up Aladin and enter “Boyajian’s Star” in to the Location field, you will get this window:

Figure 1 – Boyajian’s Star as Viewed in Aladin with Colored Digital Sky Survey


That’s Boyajian’s Star, aka KIC 8462852, centered in the purple reticle. You can zoom in from there and explore to your heart’s content. What I wanted to investigate was what was known about the other stars right around the target, so I zoomed in and overlaid one of the biggest catalogs,
2MASS (2 Micron All Sky Survey). The 2MASS has over 470 million objects in it, so chances are if you can see it in an image, it’s in 2MASS, as shown in Figure 2:

Figure 2 – Zoomed on Boyajian’s Star with the 2MASS catalog overlay.

Beyond the images though, I was interested in any measurements of the distance to any of these objects, and their proper motions – how fast they appear to be moving against the background of more distant objects. Objects with a distance similar to Boyajian’s Star or with similar proper motions are candidate neighbors, or even companions. The proper motion of Boyajian’s Star has been fairly well known (about 13 thousandths of an arcsecond per year West) for a while now, but it’s distance (a bit under 1500 light years) has only been inferred from its spectral type and apparent brightness.The little red squares in Figure 2 indicate an object in the 2MASS catalog. As you can see, all but some tiny faint smudges are cataloged by 2MASS. Most of these objects are in other catalogs, like the infrared ALLWISE catalog, or the Gaia Source List. If you are interested, you may also want to look up the PanSTARRS images, which don’t seem to be available via Aladin.

It turns out that directly measuring the distance to such a star using subtle variations in its apparent movement, or parallax, as the Earth moves around the Sun is very tricky, and only in recent times have we known more than a handful of these distances. So, we’re still not sure which of those stars are actual neighbors to Boyajian’s Star The only real measurement of its parallax was released only a few months ago by the Gaia team, and still carries a fair bit of uncertainty. We hope that with future Gaia data releases (perhaps one as soon as late 2017), we will have better information, not only about Boyajian’s star, but its neighbors as well.

So, lesson learned – many more objects have been cataloged than have been closely studied. We only know the spectral type and other information about Boyajian’s Star because it’s weird light curve as observed by the Kepler Space Telescope triggered a number of follow-up observations. As I poke around in these catalogs, I notice more and more, and with some guidance from professionals, I am able to start making sense of things, and also learning how to be more cautious.

Did a Star Go into Hiding?

In 2016, three Swedish astronomy students published their finding about a clever new approach to SETI – looking for stars that had vanished between surveys. In the sample of objects they studied, they found one faint object that appeared to be in a US Naval Observatory Catalog, but had vanished from subsequent, more sensitive surveys. I interviewed the lead author, Beatriiz Villarroel for my podcast, the Wow! Signal. Villarroel’s team weren’t sure this object was even a star, but I was intrigued by the possibility of a SETI discovery.

Using Aladin and the Vizier server, I found an image from the Sloan Digital Sky Survey and overlaid the USNO B1 catalog (Figure 3), represented by the red crosses. Right in the center is where the missing object, poetically named 1084-0241525 was, but as you can see, there is nothing there now. It’s also missing from all the other major catalogs, but keep in mind we don’t really know its proper motion. It may have moved a little over the decades, since the Palomar survey images upon which the northern part of USNO catalog is based were mostly taken in the 1950s. In 50 years, this object could have potentially moved a few arcseconds, depending on how close to us it is.

Figure 3 – USNO B1.0-1084-0241525 location on the g band SDSS image in Aladin. The red crosses are objects in the USNO catalog. Unfortunately, the star was too dim to be seen on the old photographic plates at Harvard, or to be regularly monitored by the AAVSO.

The conjecture is that if someone out there was building something around this star (if it is a star) that was hiding it from our cameras, it might be heating up enough to be visible in the infrared.  Villaroel’s team looked for this, but didn’t see anything. However, if we overlay the infrared ALLWISE survey catalog (the little blue circles), and look just outside their 5 arcsecond search radius:

Figure 4 – the ALLWISE catalog overlay around the missing star location in Aladin

You can probably guess what I was thinking. Some object moving fairly fast against the sky – a bit more than a tenth of an arcsecond per year  – had reddened so much that it had once been visible, but was now only visible in the infrared. And yes, that is a bit odd. For that to be a SETI detection is still not a slam dunk, but is much closer than we usually get.There is nothing visible under the reticle, but just to the north, about 6 arcseconds away, is an infrared object spotted by WISE, J145736.52+182507.8, that doesn’t appear to have any corresponding optical counterpart.  

The WISE space telescope, back when it was able to keep its focal plane extremely cold,  took measurements in 4 bands from in the infrared. These bands are called W1, W2, W3, and W4, and run from W1 centered at 3.35 microns wavelength to about 22 microns for W4. For comparison, the light you can see with your eyes is the neighborhood of half a micron in wavelength. Normally, the infrared bands for a star are on what is called the Rayleigh-Jeans tail – that is,  the infrared spectrum is fairly flat, and the brightness wouldn’t vary that much from band to band.

Sadly, what we know from WISE isn’t enough. W1 and W2 are fairly close in brightness, as you would expect, but the signal to noise is too low, and the best you can say is that the source is no brighter than a certain magnitude in W3 and W4 – it could be much dimmer. Maybe someday we’ll have a survey that nails down the infrared spectrum of this object, but WFIRST may not be enough, since it will only survey out to about 2 microns wavelength.  So, I haven’t found the missing star – yet.

The Mysterious Gaia Dipper

I hope you know I’m using the word “mysterious” here ironically. This word used to mean something, but now I’m afraid it’s just cheap clickbait.

ESA’s Gaia mission is doing some really interesting things right at the cutting edge of what is possible. One of the things it does as it scans the sky is measure the brightness of stars in both a blue and red band. The Gaia team keeps track of the brightness measurements for individual objects and publishes an alert when it detects that the brightness has changed by a significant amount. It has spotted quite a few supernovae this way, for example.

A small fraction of the Gaia alerts note when the brightness of the object drops considerably. I started tracking these dippers because I wanted to see if Gaia might possibly spot something that behaves like Boyajian’s Star. No doubt many of the dippers are what are called Young Stellar Objects, stars that have just formed and are still surrounded by a large disk of gas and dust.

One of the first ones of these I noted was Gaia 16bnj. Here’s what its Gaia light curve looked like (Figure 5):

Figure 5 – The lightcurve for Gaia 16bnj

Here’s the colorized WISE image:Those are very sharp dips shown in Figure 5 – quite a bit deeper than Boyajian’s Star, and the two dips are roughly the same size as best as we can tell. Using Aladin, I was able to quickly see that this relatively faint object is also in the ALLWISE catalog, as J200207.30+174649.7.

Figure 6 – Colorized WISE image for Gaia 16bnj

Ah, but you guessed it, wet blanket time. WISE astronomer and SETI researcher Jason Wright pointed out that there were problems with these measurements:The object of interest is at the center of Figure 6, with a little blue circle around it. When I looked at the WISE magnitude data at first, I got pretty excited – it is much brighter in the longer W4 wavelength than in the shorter W1 and W2, and this time these were not limiting magnitudes, as they were for J145736.52+182507.8. A big infrared excess could mean one of our favorite classes of conjecture – a megastructure.

 

Look at the quality control flags:

ccf 00Pp

One character per band (W1/W2/W3/W4) that indicates that the photometry and/or position measurements of a source may be contaminated or biased due to proximity to an image artifact:

P,p = Persistence. Source may be a spurious detection of or contaminated by a latent image left by a bright star.

So, no reason to think this thing has any excess IR emission.

So, it could easily be an imaging artifact and there is no way to tell. You know – the old extraordinary claims/extraordinary evidence thing. We’ll keep looking for more dips, and perhaps we’ll see something interesting in the future, but for now, we’ve got nothing much. However, I’m not overly discouraged. Boyajian’s star doesn’t exhibit an infrared excess, and there’s still lots of interest attached to it.

Are We Any Wiser, Then?

The first lesson from all this is that amateur attempts to mine the astronomical databases for little nuggets of holy cow are likely to be frustrated. We have cataloged billions of objects but only really studied a relative handful. Also, some of the data we do have available for exploration has problems. There might in fact be a star that goes missing from a catalog, but trying to figure out what happened to it will be frustrated by the lack of follow up observations.

For now, most of the people who get credit even for minor astronomical discoveries will overwhelmingly be the ones who make an intelligent choice of targets and point their telescopes at them for years of painstaking observations, followed by sophisticated and careful analysis. As far as I can tell, they are also the ones who deserve the credit.

However, this is not by itself a sufficient reason to give up, since after all, it’s quite pleasing to take a magic carpet ride among the stars looking for rarities. It’s your universe as much as anyone else’s, and we know orders of magnitude more about than our grandfathers did. So, feel free to download Aladin or similar tools and poke around the deep sky in whatever direction you like. Please, just let us know if you find anything.

Curiosity

It’s been 13 years since NASA’s Opportunity rover is exploring Mars. In your oppinion what is it’s most important discovery to date? Is it our most succesful Mars rover? Will the next Mars rover (planned for touchdown on Mars surface in 2020) have to chance to achieve even more? What would you personally like to see as it’s scientific payload?
Andrew Rader (SpaceX engineer, MIT PhD, author)

Perhaps the greatest discovery of the Spirit and Opportunity rovers has been to study the water cycle on Mars and yield clues as to how ice and frost moves about the planet with seasons and weather, although it would be hard to argue that Opportunity’s greatest achievement isn’t its marathon longevity. Curiosity and the 2020 Rover are much more capable than Opportunity so should interact more with the planet and (presuming a long mission) may even eventually travel farther. I think the most important experiments going forward are related to the search for water and life on Mars, and starting to conduct experiments on use and conversion of local resources like the production of methane, oxygen, and liquid water.

Nancy Atkinson (Senior Editor for Universe Today, Host of the NASA Lunar Science Institute podcast & a NASA/JPL Solar System Ambassador)

I think its interesting that basically everywhere Curiosity has traveled, it is finding evidence of past water. From the rounded pebbles that were worn by flowing water to the mudstone and sandstone features, to the layered rock formations that could only be laid down in large amounts of water, it appears that Gale Crater was at one time filled with water. And that’s intriguing because we know on Earth, everywhere there is water, there is life. Curiosity has been finding these features and potentially habitable environments almost since it landed, so the choice of Gale Crater as the landing site appears to have been the perfect place to explore!

I’m really looking forward to the Mars 2020 rover, especially how it should be able to test ways for future human explorers to use the resources available on Mars to ‘live off the land.’ Also, it should help us understand the hazards posed by Martian dust and demonstrating technologies to process carbon dioxide from the atmosphere to produce oxygen, which could be used for the production of fuel. 

Antonio Paris (Astronaut Candidate, Astronomy Professor, Planetary Scientist, Space Science Author)

The Mars rover Opportunity has made many groundbreaking achievements in the exploration on Mars. Its greatest achievement, in my opinion, does categorically fall into science or technology. I believe that Opportunity’s greatest achievement is that it served as an “extension” to the human eye, thus allowing us to explore a far distant world where humans are still decades away from making landfall. Additionally, none of the rovers on Mars are more successfully than the other. Each robotic mission to Mars had a specific purpose and it was their cumulative discoveries that have made the exploration of Mars a success thus far. Moving forward, there is an assortment of Mars rovers that will one day take the helm for Opportunity. As technology continues to improve, I sure hope a HD live cam makes it way into the next rover’s payload!

2017

2017 has just begun, it’s a good time to share our predictions. What should we expect from 2017? What should we look forward to? What are your plans for 2017?
Ciro Villa (technologist, application developer, STEM communicator)

As technologies in the realm of machine intelligence and data analysis continues to advance, I expect that the results stemming from the amalgamation of additional astronomical information will spur more announcement and presentations of discoveries in the field of deep space astrophysics and cosmology with important new theoretical dissertations regarding the nature of dark matter and dark energy. Additionally, I anticipate further exciting discoveries in terms of exoplanets and subsequently an increase in the pool of confirmed exoplanets.

I believe one of, if not the most anticipated astronomical event for 2017 is the upcoming Total Solar Eclipse to occur on August 21. This eclipse will be of peculiar interest as it will be visible for a rather large swath of the continental United States, albeit comprising a relatively narrow “band” across a multitude of States.

As far as plans for the new year are to do my best to continue to inform and try to enthuse the public regarding anything related to space and space exploration, and, barring other life priorities, continue to divulgate valuable information, news and content on new and exciting progress and discoveries.

Antonio Paris (Astronaut Candidate, Astronomy Professor, Planetary Scientist, Space Science Author)

I suspect, as is the case for the past 10 years, that we will discover a variety of extrasolar planets. Of these discoveries, 1-2% will be cataloged as potentially Earth-like planets. The James Webb Telescope, moreover, will be reaching final completion and just like many of you, I anticipate new discoveries that will reshape the field of astronomy – and science.

Matthew Greenhouse (Astrophysicist at NASA Goddard Space Flight Center working on James Webb Space Telescope)

The New Year will be an exciting one for NASA Astrophysics and the missions that I am involved in. The James Webb Space Telescope (JWST) is in the final stages of testing ahead of its 2018 launch date. During this year, the international science community will submit their first proposals to use the JWST. Observing proposals for Early Release Science are due during August. The first call for General Observing proposals will occur during November 2017 with proposals due during March 2018.

The Stratospheric Observatory for Infrared Astronomy (SOFIA) began its primary operations phase during May 2014, and continues to provide the science community’s only general access to the far-infrared spectrum (which contains half of the light in the universe). A new science instrument, called HAWC+, enters fully commissioned service this year. This instrument provides far-infrared imaging polarimetry at unprecedented angular resolution providing a new window on the study of magnetic fields in space. The High Resolution Mid-Infrared Spectrometer (HIRMES) is in full development this year, and is expected to begin operations during early 2019. During spring of this year, NASA will solicit proposals for development of an additional science instrument and will issue the 6th call for general observing proposals to use SOFIA.

NASA continues to develop a vibrant capability to study exoplanets and to search for evidence of life on them via spectroscopy of their atmospheres. A key starshade technology development activity gets underway this year to ensure that the most promising technologies for characterization of Earth-like planets will be to ready for mission prioritization by the 2020 Decadal Survey.

A January 2017 snap shot of NASA Astrophysics plans and progress can be found here.

Mike Simmons (Founder and CEO of “Astronomers without Borders”)

The big news in the US is the total solar eclipse that crosses the entire continent, from the Pacific to the Atlantic, in August of this year. But it’s more than just a single-country event. This celestial event will be seen by more people than any other in history. People from countries around the world are coming to the US for this historic event.

Astronomers Without Borders will be supporting schools in underserved communities — inner cities, Native American reservations, and more — not only with resources for the eclipse but for continuing STEM education using the Sun after the inspirational experience of the eclipse. It’s one of many efforts to get as many people as possible to view the eclipse, and to keep them looking up afterward.

Global Astronomy Month in April will be the biggest yet. There are new partners and new programs that we hope will engage even more participants around the world. SunDay — a day for public outreach with the Sun — will focus on the eclipse this year. There will be a new cultural program under the AstroArts banner. The Global Star Party will be the opening event on April 1. That’s going to be a very exciting day when we can all observe and work together.

I’m sure there will be celestial surprises as well. That’s part of the fun of astronomy. There are some wonderful events we know about but what surprise us? A bright comet, a bright nova, a large meteor strike? We’ll have to wait and see.

January 2017: Books

It’s time for a list of interesting astronomy and space related books that have their premiere in January. Click on the cover for more info.
January 17, 2017
“Rise of the Rocket Girls: The Women Who Propelled Us, from Missiles to the Moon to Mars”, Nathalia Holt

In the 1940s and 50s, when the newly minted Jet Propulsion Laboratory needed quick-thinking mathematicians to calculate velocities and plot trajectories, they didn’t turn to male graduates. Rather, they recruited an elite group of young women who, with only pencil, paper, and mathematical prowess, transformed rocket design, helped bring about the first American satellites, and made the exploration of the solar system possible.

For the first time, Rise of the Rocket Girls tells the stories of these women–known as “human computers”–who broke the boundaries of both gender and science. Based on extensive research and interviews with all the living members of the team, Rise of the Rocket Girls offers a unique perspective on the role of women in science: both where we’ve been, and the far reaches of space to which we’re heading.

January 24, 2017
“Amazing Stories of the Space Age: True Tales of Nazis in Orbit, Soldiers on the Moon, Orphaned Martian Robots, and Other Fascinating Accounts from the Annals of Spaceflight”, Rod Pyle

Award-winning science writer and documentarian Rod Pyle presents an insider’s perspective on the most unusual and bizarre space missions ever devised inside and outside of NASA. The incredible projects described here were not merely flights of fancy dreamed up by space enthusiasts, but actual missions planned by leading aeronautical engineers. Some were designed but not built; others were built but not flown; and a few were flown to failure but little reported:

A giant rocket that would use atomic bombs as propulsion (never mind the fallout), military bases on the moon that could target enemies on earth with nuclear weapons, a scheme to spray-paint the lenses of Soviet spy satellites in space, the rushed Soyuz 1 spacecraft that ended with the death of its pilot, the near-disaster of the Apollo 11 moon landing, the mysterious Russian space shuttle that flew only once and was then scrapped–these are just some of the unbelievable tales that Pyle has found in once top-secret documents as well as accounts that were simply lost for many decades.

These stories, complimented by many rarely-seen photos and illustrations, tell of a time when nothing was too off-the-wall to be taken seriously, and the race to the moon and the threat from the Soviet Union trumped all other considerations. Readers will be fascinated, amused, and sometimes chilled.

January 25, 2017.
“The Pillars of Creation: Giant Molecular Clouds, Star Formation, and Cosmic Recycling”, Martin Beech

This book explores the mechanics of star formation, the process by which matter pulls together and creates new structures. Written for science enthusiasts, the author presents an accessible explanation of how stars are born from the interstellar medium and giant molecular clouds. Stars produce the chemicals that lead to life, and it is they that have enabled the conditions for planets to form and life to emerge.

Although the Big Bang provided the spark of initiation, the primordial universe that it sired was born hopelessly sterile. It is only through the continued recycling of the interstellar medium, star formation, and stellar evolution that the universe has been animated beyond a chaotic mess of elementary atomic particles, radiation, dark matter, dark energy, and expanding spacetime. Using the Milky Way and the Eagle Nebula in particular as case studies, Beech follows every step of this amazing process.

January 27, 2017
“Gravity’s Kiss: The Detection of Gravitational Waves”, Harry Collins

Scientists have been trying to confirm the existence of gravitational waves for fifty years. Then, in September 2015, came a “very interesting event” (as the cautious subject line in a physicist’s email read) that proved to be the first detection of gravitational waves. In Gravity’s Kiss, Harry Collins — who has been watching the science of gravitational wave detection for forty-three of those fifty years and has written three previous books about it — offers a final, fascinating account, written in real time, of the unfolding of one of the most remarkable scientific discoveries ever made.

Predicted by Einstein in his theory of general relativity, gravitational waves carry energy from the collision or explosion of stars. Dying binary stars, for example, rotate faster and faster around each other until they merge, emitting a burst of gravitational waves. It is only with the development of extraordinarily sensitive, highly sophisticated detectors that physicists can now confirm Einstein’s prediction. This is the story that Collins tells.

January 2017: Astronomy & Space on paper

Looking for something to read in January? Quick check on what’s in store for this month in astronomy magazines.  

Astronomy, topics:

  • Top 10 space stories of 2016
  • The final days of Cassini
  • Ask Astro
  • The Sky This Month
  • StarDome and Path of Planets
  • Sizing up planetary nebulae
  • Is telescope making a lost art?
  • Two imagers are better than one
  • Starmus III: A tribute to Stephen Hawking

SkyNews, topics: 

  • Top 10 Sky Sights For 2017
  • The World Next Door
  • Splendid Winter Double Stars
  • On the Moon: A Blue-Sky Moon
  • Scoping the Sky: Castor Puts His Best Foot Forward
  • Cosmic Musings: A Celestial Eye Chart
  • Capturing The Universe: Tools and Rules For Getting the Right Exposure
  • Exploring the Night Sky: Venus Lights the Evening Sky
  • Editor’s Report: Manual Mayhem
  • Constellation Corner: Lepus

Sky at Night, topics:

  • 25 Years of Exoplanets
  • Tim Peake
  • Missions of the Future
  • The Ashen Light
  • Reviews: Vixen A62SS 2.5-inch achromatic refractor, iOptron SkyTracker Pro DSLR camera mount, ZWO ASI290MM cooled monochrome CMOS camera
  • Stellar spectral classifications
  • How to make an automated flat panel and dust cap
  • Image processing – registering images in DeepSkyStacker
  • Monthly Bulletin, all the latest astronomical news, Cutting Edge revealing the highlights from brand new research
  • January Sky Guide featuring the Quadrantids meteor shower, Comet 45P/Honda-Mrkos-Pajdusakova, an all-sky chart, a deep-sky tour
  • Our Scope Doctor answers your technical kit questions
  • Interactive: your letters, tweets, forum posts and readers’ scopes
  • Gear
  • What’s On listings
  • Hotshots
  • Beautiful new images from space in Eye on the Sky
  • The latest astronomy books reviewed

Popular Astronomy, topics:

  • The jewels of Perseus Martin Griffiths
  • The origins of popular astronomy Allan Chapman
  • A day in the life of a radio astronomer Megan Argo
  • Is Proxima b habitable?
  • Q&A with Chris Lintott
  • Telescope Topics
  • Amateur Scene
  • Citizen Science
  • Young Stargazers
  • Space Exploration
  • Book Reviews
  • Section Reports
  • The Society Pages
  • Sky Diary

How to win Nancy Atkinson’s book

10 people have the chance to win Nancy Atkinson’s book “The Incredible Stories From Space: A Behind the Scenes Look at the Missions Changing Our View of the Cosmos”.

For your chance to win a free copy of the book you need to enter a giveaway competition at Goodreads –https://www.goodreads.com/giveaway/show/216146-the-incredible-stories-from-space-a-behind-the-scenes-look-at-the-missi

Competition ends on Jan 20, 2017

David Grinspoon joins Astronomy/Finest

Warm welcome to our new panelist: David Grinspoon.

David Grinspoon is an astrobiologist, senior scientist at The Planetary Science Institute, columnist at “Sky and Telescope” and an author of several books. He also performs with his band House Band of the Universe.

Matthew Greenhouse joins the panel

Astronomy/Finest is proud to announce a new panelist: Matthew Greenhouse.

Matthew Greenhouse is an astrophysicist working for over 20 years at NASA Goddard Space Flight Center. He is responsible for the science instrument payload on the James Webb Space Telescope.

Charity 2.0

Back in June 2015 we created a list of charities worth supporting. As it’s always a good time to support organizations that are changing the world for better we’re doing it again. 
Abigail Harrison (Aspiring astronaut & scientist, founder and spokesperson for The Mars Generation)

TheMarsGeneration.org which is a nonprofit setup by myself and a team of astronauts, engineers and others. The mission is to excite and educate students and adults about the importance of human space exploration and STEM education to the future of humanity.

The organisation is now in its second year of operation. It is 100% volunteer driven, has provided 10 students with financial need full paid space camp scholarships in 2016 and will do the same for summer of 2017, has over 650 Student Space Ambassadors, over 350 founding members so far and an online following of over 700,000 fans and followers. Last year we reached over 10 million people and we anticipate year two to be even bigger!

Mike Simmons (Founder and CEO of “Astronomers without Borders”)

I started Astronomers Without Borders to connect people around the world through our common passion. Now we’re doing a lot to advance STEM through astronomy, sharing what those of us have in developed countries with others..

Morgan Rehnberg (PhD student at University of Colorado, works with Cassini to study Saturn’s rings) 

I support the Wikimedia Foundation each year because I can’t imagine what I’d do for even a day without Wikipedia. Whether it’s finding a quick reference for the mass of a moon or a high-resolution copy of the Hubble deep field, basically all the information I could ever want is a click or two away. It’s certainly an organization with its share of faults, but I can’t imagine the amount of effort it would take to start over from scratch.

Paul Carr (Space Systems engineer at NASA, podcaster, blogger, investigator)

I think there are many worthy charities. I mentioned one of them in the latest episode (64) of the Unseen Podcast: Doctors Without Borders. As for space or astronomy related charities, I have donated at various times to the SETI Institute, the Planetary Society, and the AAVSO. At the AAVSO, you can adopt the variable star of your choice for $20/year, which is a good way to help them.