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Recent Podcast
A Tour of NGC 5128 Flare
A Tour of NGC 5128 Flare
Astronomers have found a pair of extraordinary objects that dramatically burst in X-rays. This discovery, made using data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton observatory, may represent a new class of explosive events. (2016-10-20)
Podcasts: Cosmology/Deep Fields/X-ray Background

Recent discoveries and updates of the Chandra mission in video and audio formats.

A Tour of CL J1001 (08-31-2016)
Galaxy clusters are incredibly important objects in the Universe since they are the largest objects in the Universe held together by gravity.

- Related Links:
--  Record-breaking Galaxy Cluster Discovered

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A Tour of Black Hole Seeds (06-02-2016)
The new results suggest that at least some of the supermassive black holes in the early Universe formed through this direct collapse method.

- Related Links:
--  NASA Telescopes Find Clues For How Giant Black Holes Formed So Quickly

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A Tour of Galaxy Clusters (05-06-2016)
A new study tries to tackle the questions surrounding dark energy by examining properties of X-ray emission from galaxy clusters.

- Related Links:
--  "Russian Doll" Galaxy Clusters Reveal Information About Dark Energy

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The Universe Darkly (02-29-2008)
When you look up at the night sky, you see a lot of things glowing like stars, planets, and galaxies. So it might sound strange to hear that most of the Universe is actually dark. The truth is the protons, neutrons and electrons that make up everything we can see, and that means everything with telescopes we've got, accounts for only about 4% of the mass and energy of the Universe. The rest is dark and mysterious. More specifically, about 70% of the Universe is what is known as dark energy; about 26% is so-called dark matter. Modern day astronomers have developed many tactics to explore the dark Universe, including using telescopes like Chandra.

- Related Links:
--  The Universe in a Jelly Bean Jar
--  The Universe

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