A supernova is a spectacular event. It can outshine the optical light from an entire galaxy, and with the help of big ground-based telescopes, it can be seen across more than half the Universe. At least one of the supernovas in our galaxy was so bright it was visible to ancient astronomers during the day. All of this light comes with a tremendous amount of energy, which has a big impact on the supernova's home galaxy, by heating and pushing gas around, pumping out new elements and creating exotic objects in the form of neutron stars and black holes. Supernovas are vital not only for the life of a galaxy, but the life in a galaxy. Full Story
Try Out the Universe on Your Desktop
In the last year we have seen tremendous development in visualizing the Universe through the digital world. Google Sky and Wikisky are examples of this progress. These interfaces...
[More (13 May 08)]
In the last year we have seen tremendous development in visualizing the Universe through the digital world. Google Sky and Wikisky are examples of this progress. These interfaces...
[More (13 May 08)]
Of note last week was the presentation on Apr 23 by the Chandra team to the Astrophysics Division Senior Review for Operating
Missions. [more]
G1.9+0.3 [05/14/2008]The expanding remains of a supernova explosion in the Milky Way are shown in this composite image of the supernov...
Take Chandra anywhere! Just download Chandra Podcasts to your portable MP3 player and go. Now playing: Kepler's Supernova Remnant in 60 Seconds 
This Chandra X-ray Observatory image shows Westerlund 2, a young star cluster with an estimated age of about one or two million years.Download Desktop. 
Scientists have recently used Chandra to observe powerful flares on young Sun-like stars in the Orion Nebula. These results show that solar flares may have played an important role in shaping our solar system. Here, we explain more of the science behind these conclusions and give some other details about these deep Chandra observations. Full Story
Most of the Universe is dark. The protons, neutrons and electrons that make up the stars, planets and us represent only a small fraction of the mass and energy of the Universe. The rest is dark and mysterious. X-rays can help reveal the secrets of this darkness. X-ray astrophysics is crucial to our understanding not only of the Universe we see, but the quest to determine the physics of everything. Full Story
If our Sun collided with another star, it would probably be really bad for life on Earth. We're safe from such a fate because the nearest star to the Sun is Proxima Centauri, about 4.2 light years (or 25 million million miles) away. Full Story
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Updated: May 14, 2008