Astronomers say they've developed a new method to detect light that echoes around black holes. It could help them measure black holes' size and rotation.
Join us at 12:15 CST (18:15 UTC) on Monday, November 11, when former NASA chief Alan Stern will be discussing the Fermi Paradox. Where are all the aliens?
Gliese 229 B - the first-known brown dwarf - is really a binary system of two brown dwarfs entwined in an incredibly close orbit. See their orbit here!
Will Triggs fell in love with stargazing after moving to England's east coast, where the dark skies allowed him to catch a glimpse of the Milky Way for the first time. Producing content across EarthSky's website, newsletter and YouTube channel, he is responsible for EarthSky stories on astrophysics, the wonders of the night sky, and our changing Earth.