
The sun emitted a significant solar flare, an X1.1-class, that peaked at 1:14 a.m. EST on Nov. 10, 2013 as…

Comet ISON is shown 97 million miles from Earth, heading toward a close encounter with the sun on Nov. 28.

NGC 6946, or "the Fireworks Galaxy," is a medium-sized, face-on spiral galaxy about 22 million light years away from Earth.

John and Annie Glenn ride a float in a parade at the NASA's Glenn Research Center.

Expedition 38 Soyuz Commander Mikhail Tyurin of Roscosmos, holding the Olympic torch, Flight Engineer Koichi Wakata of the Japan Aerospace…

A sign for the Sochi 2014 Winter Olympics is seen at the base of the Soyuz launch gantry after Expedition…

The Soyuz TMA-11M rocket is seen, in this 2 minute exposure, as it is launched with Expedition 38 Soyuz Commander…

This NASA Hubble Space Telescope set of images reveals a never-before-seen set of six comet-like tails radiating from a body…

The Soyuz TMA-11M rocket is launched with Expedition 38 Soyuz Commander Mikhail Tyurin of Roscosmos, Flight Engineer Rick Mastracchio of…

The Soyuz TMA-11M rocket is launched with Expedition 38 Soyuz Commander Mikhail Tyurin of Roscosmos, Flight Engineer Rick Mastracchio of…