U.S. military makes 1st contact with aliens in 'Elio,' an intergalactic summertime treat from Pixar.

New research suggests that life could have the time and energy to arise on Earth-like worlds in the rapidly shrinking "Goldilocks zones" around white dwarf stars.

NASA and Boeing are still working on the problems that cropped up during Starliner's first crewed flight, which launched more than nine months ago.

Using the now-retired Kepler space telescope, astronomers have discovered that larger planets grow up in more turbulent homes than smaller worlds.

Famed physicist Stephen Hawking took gravity to its ultimate limits. In doing so, he made a number of significant advancements in our understanding of black holes, cosmology and quantum gravity.