All stars spend the majority of their lives as so-called main-sequence stars. Consequently the vast majority of stars—90% or so—are undergoing hydrogen-helium fusion at any given time.

Deciphering how stars form within turbulent, dense clouds of molecular gas has been a challenge. An innovative technique that uses a tree diagram provides insight into the process. Stars and ...

Blue supergiants may be formed by two stars in a binary system merging. Casey Reed, NASA. Blue supergiants are huge, luminous stars that are some of the most ...

One of these stars immediately jumped out as an oddity. It had much, much less of the heavier elements in it than any other star yet seen in the Large Magellanic Cloud. This means it was probably ...

Lynds bright nebula 483, seen in infrared light by the JWST. (Image credit: NASA/ESA/CSA/STScI) The jets are formed by material with a rich abundance of varied molecules falling onto young protostars.

“This allows us to use the colour-magnitude diagram as a clock,” he adds. ... And later, at the epoch 4.5 billion years ago, another generation of stars formed from that element-rich gas.

Stars are thought to form within enormous filaments of molecular gas. Regions where one or more of these filaments meet, known as hubs, are where massive stars form. These massive stars, located ...

While many people flock to warm destinations for spring break, two RIT experimental cosmologists spent theirs 6,800 feet high on snow-covered Kitt Peak at the Arizona Radio Observatory. They were ...

A cluster of stars known as NGC 346, which is more than 200,000 light-years away from Earth, has become of interest to astronomers because it resembles the conditions of the early universe.