It's the first Airy Monday of the year, and today's Beagle post concentrates on that most "Airy" of realms -- space! A guide to skywatching; 2015 space exploration events; life on Mars?; the search for E.T.s; Mercury Retrograde.

The editors at IFL Science have thoughtfully created this guide to skywatching for 2015. Get out your home telescope or binoculars, and look up!

Turns out that 2015 will be a pretty big year for space exploration. Check out all the upcoming missions here.

Could Mars have supported life in the past? This article examines the factors that are being weighed in answering this perennial question.

What does the search of extraterrestrial life say about humanity?

Well, it's astrology, not astronomy, but it's certainly airy -- here's the calendar for all the Mercury Retrograde events in 2015.