Remind anyone of a favorite arcade game? The new moon passes over the sun in this Feb. 21 image taken by NASA's Solar Dynamics Observatory. The partial eclipse was visible only from space. The next partial solar eclipse Earthlings wil
Image of the star Monocerotis reveals dramatic changes in the illumination of surrounding dusty cloud structures. The effect, called a light echo, has been unveiling never-before-seen dust patterns ever since the star suddenly brightened for.
A diagram showing a timeline of the formation of the Universe from the Big Bang ± billion years ago through the "Dark Ages", formation of the earliest galaxies and stars, and the dark-energy dominated era.