Was it a cosmic jellyfish, a fleeting light trick, or something more outlandish? When NASA astronaut Nichole Ayers took a ...

Astronauts carry more than just science tools to space. From Baby Yoda to homemade dinosaurs, these toys bring joy and ...

Tissue samples sent to the International Space Station reveal what can happen to astronauts on long-term missions.

U.S. astronaut Nichole "Vapor" Ayers captured a spectacular view of a phenomenon known as a "sprite" blazing to life above an ...

The first-ever meal eaten in space comprised beef and liver paste squeezed through a tube. Next year, ISS astronauts will be ...

A NASA astronaut captured a fascinating weather phenomenon that still has scientists scratching their heads. Nichole Ayers is ...