And speaking of the break of dawn, that happens nowadays at around 5:15 a.m. local daylight time. And that's the time for ...

The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the mysterious driver of our universe's accelerating expansion. Today, the ...

This image provided by NASA shows X-rays from NASA’s Chandra X-ray Observatory (represented in blue) that have been combined with infrared data from NASA’s retired Spitzer Space Telescope (cyan, light ...

Astronomers have discovered a strange new object in our Milky Way galaxy. An international team reported Wednesday that this celestial object — perhaps a star, pair of stars or something else entirely ...