Photograph by James Balog in The return of Halley's Comet in my lifetime was not as spectacular as it was in I did not see it myself, the weather was overcast for most of the period it could be seen in my part of the world.
A small, dense object only 12 miles in diameter is responsible for this beautiful X-ray nebula that spans 150 light years. At the center of this image made by NASA's Chandra X-ray Observatory is a very young and powerful pulsar, known as PSR or for short.
Barcelona, Spain Credit: NASA Earth Observatory The city lights of Spain and Portugal define the Iberian Peninsula in this photograph from the International Space Station (ISS) taken on Dec. Barcelona hosted the 1992 Summer Olympics for the XXV Olympiad
This composite image of the Tycho supernova remnant shows the scene more than four centuries after the brilliant star explosion witnessed by Tycho Brahe and other astronomers of that era. The explosion has left a.