It’s this time of year when we make predictions for the upcoming year. What should we look for in the year 2018? What event or mission will be on everyone’s lips next year?
Fraser Cain (publisher at Universetoday.com, co-host of Astronomy Cast)

There are a couple of big missions coming from SpaceX that I think will keep people on their toes. The first, of course is the launch of SpaceX's Falcon Heavy Rocket, which has been delayed for several years now. This will bring serious heavy lift capability to SpaceX, which has only been possible from the traditional launch providers. In addition, SpaceX is expected to launch a couple of space tourists on circumlunar trajectory on board a Dragon capsule This will be the first time humans have gone beyond low Earth orbit since the Apollo era. Of course, SpaceX timelines will likely slip, so it's entirely possible that these predictions will be totally wrong.

In terms of astronomy, I think the result I'm most excited about will be the first pictures from the Event Horizon Telescope, which gathered data back in April 2017. To think that we'll see an image of the region around a black hole is mind boggling.

Of course, the biggest things will be the unexpected. 2017 surprised us, and I'm sure 2018 will surprise us too.

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

Although I’m a big fan of every “branch” of space exploration, I’m especially interested in planetary exploration (and that’s why I wrote a book about it!) There are several big planetary events coming up in 2018 and I’m looking forward to all of them. The InSight seismology probe is scheduled to launch to Mars in May, and land later this year. There are two asteroid sample missions that will arrive at their destinations this year: OSIRIS-REx will reach Bennu in August, and Hayabusa 2 is scheduled to reach Ryugu in July. Also, ESA and JAXA are teaming up to launch BepiColombo to Mercury in October (arriving in 2025). China is expected to launch the Chang'e 4 lander/rover sometime this year to land on the moon’s far side.

Of course, all the current planetary missions will continue to awe and amaze us: Juno is telling us more about Jupiter while sending back incredible images; the two Mars rovers carry on with their journeys across the surface of the Red Planet, Dawn is still orbiting Ceres, and at the end of the year, New Horizons will be approaching its next target, an intruging Kuiper Belt Object. So, there will be no shortage of exciting planetary science news to cover in 2018!

Seth Shostak (Senior Astronomer and Director of the Center for SETI Research at SETI Institute)

Discovery of a new, big planet in the outer solar system.

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

The first thing should be the launch of the Falcon Heavy. We don’t yet know how important a launch vehicle the Heavy will be, but stay tuned for a wonderful spectacle as multiple boosters return to the launch site at once.

The planned launch of TESS is probably the biggest item on my list. It will take a few months to settle into the science, but towards the end of 2018 TESS should start delivering a much better census of planets, especially Earths and Super Earths that are relatively near to us compared to Kepler’s discoveries. We might even find some Earth-like planets quite close by. Along with follow-up ground observations, this should push us truly into the golden age of exoplanet discoveries.

Another big event at about the same time as the TESS launch is the Gaia DR2 data release. I am especially hoping for much smaller error bars on the distance to Boyajian’s Star, which would help to constrain theories about what causes the slow dimming ad brightening episodes we observe.