Stars
Exploring Our Galaxy’s Ancient Brown Dwarfs
As the name implies, a brown dwarf is small... only about 7% the size of the Sun. As far as…
‘Elephant Trunks’ Crowd Distant Star Cluster, Raising New Questions About Stellar Formation
Star winds are pushing the gas around NGC 3572 into "elephant trunks", as you can see if you look carefully as…
Supersonic Starbirth Bubble Glows In Image From Two Telescopes
Talk about birth in the fast lane. Fresh observations of HH 46/47 -- an area well-known for hosting a baby star…
What Are The Odds Of Spotting A Milky Way Supernova From Earth?
An exploding star in our home galaxy might be visible to Earth in the next 50 years, astronomers say in…
Watch the Sun Split Apart
Here's your amazing oh-my-gosh-space-is-so-cool video of the day -- a "canyon of fire" forming on the Sun after the liftoff…
Future Supernova Is Surrounded By Hydrogen Clouds
The faint green glow you see in that picture is not an early harbringer of Hallowe'en spooks. It's hydrogen gas…
Is That Planet Habitable? Look To The Star First, New Study Cautions
Finding Earth 2.0, in the words of noted SETI researcher Jill Tarter, is something a lot of exoplanet searchers are…
Double Star Fomalhaut May Actually Be A Triplet!
Fomalhaut is a really cool place to study. The naked-eye star (the brightest star in the constellation Piscis Austrinus) has a…
Double Vision: Scientists Spot An Elder ‘Twin’ To the Sun
If you want a picture of how you'll look in 30 years, youngsters are told, look at your parents. The…
Flicker… A Bright New Method of Measuring Stellar Surface Gravity
A simple, yet elegant method of measuring the surface gravity of a star has just been discovered. These computations are…