NASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...

The “ghost towns,” named Sculptor A, B, and C, consist of three faint and ultra-faint galaxies about 6.5 million light-years ...

Six planets grace the sky this month in what's known as a planetary parade, and most can be seen with the naked eye. These ...