"Cosmic archaeologists" have discovered an iron-deficient second-generation star, which provides evidence of how ancient stars enriched their successors.

If you look eastward at the same hour for two nights in a row, you’ll find that the stars seem to be in the same place. But ...

Today Astronomy Night & Star Party: 6:30 p.m. Saturday, Sandstone Ranch Visitors Center, 3001 Sandstone Drive, Longmont.

Discover the cosmic connection we all share with the universe through the exploration of the fact that we are literally made ...

Because contemplating the vast, never-ending universe now feels infinitely more manageable than reading another update about ...

Sky This Week is brought to you in part by Celestron. Friday, March 20The vernal equinox occurs at 10:46 A.M. EDT, bringing astronomical spring to the Northern Hemisphere as the Sun stands directly ...

Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron—less than 1/40,000th of the sun. This signature makes it the clearest example of a star within a primordial ...

What would you do if you woke up on a spaceship light-years from Earth without knowing why you're there? Based on the New ...

Brown dwarfs get a bad rap in the stellar world, often labeled as "failed stars" for their inability to sustain nuclear fusion at their cores. The mass of these objects falls between planets and stars ...

Astronomers have uncovered evidence of a dramatic cosmic crash unfolding around a distant star. While reviewing archived ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

Although brown dwarfs and giant gas planets are very similar, making differentiation difficult. Now, a crucial difference has ...