How many spiral arms does the Milky Way have? You might be surprised to learn that astronomers are still not completely sure.
Why do some planets slightly more massive than Earth have gas envelopes, while others don’t?
The past 20 years of exoplanet discovery have unveiled many peculiar planets in the Milky Way. Today’s paper investigates if two classes of these odd planets could be the same planet at different points in their evolutionary history – if hot Jupiters can transform into super-Earths!
How to teach a computer to do all of your work for you!
Low-mass stars are much more common than massive ones. But massive stars outshine the smaller ones a thousand to one! How can astronomers account for this hidden majority? Maybe alcohol will help…
Amino acids were possibly brought to Earth by meteorite impacts, which contaminated the young environment with organic compounds. However, where and how did these most basic ingredients of life form in the first place?