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

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

Loki and his army are nothing to scoff at in The Avengers, but there are several Marvel heroes who would have made quick work ...

NASA has released a new video of Earth's sun, capturing a giant 'orb' soaring past the blazing star. The footage has sparked ...