The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

One of NASA's two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since ...

A SpaceX rocket took off from Kennedy Space Center in Florida early Wednesday morning carrying two lunar landers.

Blue Origin, the space company founded by billionaire Jeff Bezos, launched its massive New Glenn rocket for the first time ...