Stars are known to form in large nebulae known as stellar nurseries. Now there’s evidence they also form in multiple waves.
All In The Family
Stars aren’t living things, but like living things they have a family tree with common origins.
Big Planet Discovered Around A Very Young Star
A planet larger than Jupiter has been detected around an extremely young star.
Solving the Lithium Enigma
Why do young stars contain so much lithium? That might seem an odd question, but it’s a question that has nagged astronomers for quite some time.
Where the Wild Things Are
Giant stars lurk the heart of the Westerlund 1 cluster.
The Old Ones
Five small planets have been discovered around an ancient star.
Backlighting
Earlier this year I wrote about a diffuse band of gamma rays coming from regions above and below the Milky Way. The regions spanned about 25,000 light years above and below the galactic plane, and are thought to have formed from an active period of our galaxy’s supermassive black hole about 2 million years ago. While we could determine the size of these regions from their x-ray and gamma ray emissions, it has been difficult to determine their motion. But yesterday at the American Astronomical Society Meeting, new results from the Hubble telescope are measuring the motion of these regions using an interesting trick.
Magnetic Meteorites
Recently a paper in Science looked at the magnetic properties of a primitive meteorite known as Semarkona, and discovered a surprising fact about the early solar system.
Doppelganger
Recently in Astrophysical Journal Letters a paper was published on the oldest “solar twin” yet discovered. The star, HIP 102152, is about 250 light years away from us, and about 4 billion years older than our Sun.
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