The galaxy's cream-colored center is packed with ancient stars, and the ... H II (pronounced "H-two" or hydrogen-two) regions ...

The line became known as the main sequence. Competing groups of astronomers came up with different ways to categorize main ...

01 times that of our own sun, but their mass is about the same. Stars like our sun fuse hydrogen in their cores into helium. White dwarfs are stars that have burned up all of the hydrogen they ...

Brown dwarfs are intermediate objects between planets and stars. Astronomers generally ... Furthermore, the observations detected hydrogen cyanide and acetylene in the atmosphere of WISE-0458.