
This stunning image captures a small region on the edge of the inky Coalsack Nebula, or Caldwell 99.

NASA spacewalker Thomas Marshburn is pictured attached to the tip of the Canadarm2 robotic arm during a six-hour and 32…

This view from NASA spacewalker Thomas Marshburn's camera points downward toward the International Space Station.

This view from NASA spacewalker Thomas Marshburn's camera points downward toward the International Space Station.

NASA spacewalker Kayla Barron is pictured during a six-hour and 32 minute spacewalk.

A portion of the International Space Station's U.S. segment is pictured with the Kibo laboratory module, the Harmony module, the…

points the camera toward herself and takes an out-of-this-world "space-selfie."

The Moon's shadow, caused by a solar eclipse over Antarctica, is pictured from the International Space Station.

The Moon's shadow, caused by a solar eclipse over Antarctica, is pictured from the International Space Station.

NASA’s Laser Communications Relay Demonstration, or LCRD, launched aboard a United Launch Alliance Atlas V rocket on Tuesday, Dec. 7,…