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X-ray Vision Reveals the Insides of Stars (07-25-2014)
Each of these four fabulous photographs shows the remains of an exploded star - called a supernova remnant.

A Tour of The Big, Bad & Beautiful Universe with Chandra (07-22-2014)
To celebrate the 15th anniversary of NASA's Chandra X-ray Observatory, we have released four new images of supernova remnants. These show Chandra's ability to study the remains of supernova explosions, using images that are the sharpest available in X-ray astronomy. The images of the Tycho and G292.0+1.8 supernova remnants show how Chandra can trace the expanding debris of an exploded star. The images show shock waves, similar to sonic booms from a supersonic plane, that travel through space at speeds of millions of miles per hour. The images of the Crab Nebula and 3C58 show the effects of very dense, rapidly spinning neutron stars created when a massive star explodes. These neutron stars can create clouds of high-energy particles that glow brightly in X-rays. The image for G292 shows oxygen (yellow and orange), and other elements such as magnesium (green) and silicon and sulfur (blue) that were forged in the star before it exploded. For the other images, the lower energy X-rays are shown in red and green and the highest energy X-rays are shown in blue.

A Tour of M106 (07-02-2014)
NGC 4258, also known as Messier 106, is a spiral galaxy like the Milky Way. This galaxy is famous, however, for something that our Galaxy doesn't have - two extra spiral arms that glow in X-ray, optical, and radio light.

A Tour of Perseus (06-25-2014)
A team of astronomers has used Chandra X-ray Observatory and XMM-Newton to study a large group of galaxy clusters with a surprising result.

X-rays Uncover Black Holes Dancing With Normal Stars (06-17-2014)
This photograph shows the flamboyant spiral galaxy called Messier 51.

A Tour of M51 (06-04-2014)
Like the Milky Way, the Whirlpool is a spiral galaxy with spectacular arms of stars and dust.

Space Scoop: Collecting Clues to a Cosmic Crime (06-02-2014)
The galaxy is called ESO 137-001 and in reality it is hidden from our view by a thick fog of space dust.

Space Scoop: Galaxy Hits a Cosmic Bullseye (05-13-2014)
The Universe is vast and largely made up of empty space, but cosmic collisions still happen pretty often.

A Tour of Flame Nebula (05-08-2014)
A new study of NGC 2024 and the Orion Nebula Cluster show stars on the outskirts of these clusters are older than those in the middle.

A Tour of Astro Pro-Am (05-02-2014)
Four images of galaxies that have been made using data from both amateur and professional telescopes.