Veteran astronaut Don Pettit conducted hundreds of hours of research and captured over half a million photos during his ISS ...

It’s gathering “extremely precise” wind measurements using an instrument that sends out 200 laser pulses per second from an ...

NASA explains how a 'ring of fire' annular solar eclipse occurs and how it differs from a total solar eclipse. WARNING: ...

Fresh from space, NASA's oldest full-time astronaut said Monday that weightlessness made him feel decades younger, with ...