Astronomical observers will find lots of reasons to mark their calendar in 2018. --
Best Astronomical Highlights of 2018 Astronomical observers will find lots of reasons to mark their calendar in 2018. Two supermoons, two blue moons, five planets at opposition, three meteor showers that could produce more than 100 falling stars an hour, and at least one comet all occur in the year ahead, guaranteeing that you'll have something up above to get excited about each month this year.