Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have discovered "signs of a ‘hot spot’ orbiting Sagittarius A*," according to the European Southern Observatory (ESO) ...

The Milky Way seems to be currently colliding with one of its galactic neighbors, and that discovery might change how we ...

One type of star that emits pulsing signals is a type of neutron star called a pulsar, the collapsed core of a massive star that has gone supernova. Pulsars emit beams of radio waves as they spin, so ...

Year? A light-year is the distance light travels in one year. Light moves incredibly fast — about 186,000 miles (300,000 ...