14. The Sun emits a continuous stream of plasma called the solar wind. On Earth, the most visible effect of the solar wind is the production of the northern and southern lights, the aurorae. Intense ...

Today in the history of astronomy, the first photo of Earth by a satellite is taken.

The solar system’s smallest planet is just now becoming visible before dawn. Bright Jupiter and Venus point the way.

ULA Vulcan Launch completes its first National Security Space Launch mission, taking the reins from the Delta IV Heavy for ...