Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the ...

which are among the brightest stars in the night sky, according to the Center for Astrophysics. In the Milky Way and nearby ...

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...

The European Space Agency's (ESA) Gaia telescope has completed its objective - making the most detailed and precise map of ...

A massive white dwarf and a sun-like "blue lurker" star tell a remarkable story of what was once a triple-star system in the ...

To the unaided eye, its translucent clouds are simply beautiful splashes in the night, their grandeur ... within and outside the Milky Way that show how our own galaxy and others formed, explain ...

The Milky Way appears in the night sky at the U.S.-Mexico border on March ... possibility of planet formation near black holes in our galaxy. More John Moore/Getty Images Florian Peissker, lead ...