The Beautiful Universe: Chandra in HD

Tour: Before Fall Leaves, See Seasonal Offerings from NASA's Chandra

Before fall gives way to winter in the northern hemisphere, NASA's Chandra X-ray Observatory has several images that celebrate autumn and its many delights to share.

Tour: NASA's Chandra Finds Black Hole With Tremendous Growth

A black hole is growing at one of the fastest rates ever recorded. This discovery from NASA's Chandra X-ray Observatory may help explain how some black holes can reach enormous masses relatively quickly after the Big Bang.

Tour: NASA's Chandra Reveals Star's Inner Conflict Before Explosion

The star that exploded to become the Cassiopeia A supernova remnant appears to have undergone a dramatic event right before its demise. New evidence from Chandra indicates that the star's interior was violently rearranged just hours before the explosion.

Tour: X-ray, Radio Go 'Hand in Hand' in New NASA Image

In 2009, Chandra released a captivating image: a pulsar and its surrounding nebula that is shaped like a hand. Since then, astronomers have used Chandra and other telescopes to continue to observe this object.

Tour: NASA's Chandra Finds Baby Exoplanet is Shrinking

A baby planet is shrinking from the size of Jupiter with a thick atmosphere to a small, barren world, according to a new study from NASA's Chandra X-ray Observatory.