The Beautiful Universe: Chandra in HD
High definition views of Chandra's exciting science Cassiopeia A is the 300-year-old remnant created by the supernova explosion of a massive star. Each Great Observatory image highlights different characteristics of the remnant.
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Tour of Phoenix Cluster
This galaxy cluster, which was found about 5.7 billion light ...
This galaxy cluster, which was found about 5.7 billion light years from Earth, shattered several important astronomical records.
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Tour of Sgr A*
At the heart of the Milky Way galaxy, there is ...
At the heart of the Milky Way galaxy, there is a supermassive black hole that has the mass equivalent of some four million Suns.
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Chandra Sketches: Highlights of Light
Light comes in different forms. The light that we see ...
Light comes in different forms. The light that we see with our eyes is just a fraction of all light.
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Chandra Sketches: Our Connection With Light
We rely on light - both natural and artificial - ...
We rely on light - both natural and artificial - to brighten and power our world, but also for so much more.
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Tour of Abell 1033
Understanding how clusters grow is critical to tracking how the ...
Understanding how clusters grow is critical to tracking how the Universe itself evolves over time.
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A Tour of RGG 118
Oxymorons are often thought of as gaffes in language, but ...
Oxymorons are often thought of as gaffes in language, but a new black hole discovery shows they can also represent important scientific advances.
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Coloring the Universe - Part 2
Last time, we looked at the electromagnetic spectrum. This time ...
Last time, we looked at the electromagnetic spectrum. This time we'll look at how astronomical images are made.
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Coloring the Universe - Part 1
An astronomer's toolkit consists of many kinds of light, across ...
An astronomer's toolkit consists of many kinds of light, across the electromagnetic spectrum.
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Chandra's Sweet Sixteen
This year, NASA's Chandra X-ray Observatory celebrates its own "sweet ...
This year, NASA's Chandra X-ray Observatory celebrates its own "sweet 16."
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A Tour of PSR B1259-63/LS 2883
A fast-moving pulsar appears to have punched a hole in ...
A fast-moving pulsar appears to have punched a hole in a disk of gas around its companion star and launched a fragment of the disk outward at a speed of about 4 million miles per hour.