NASA's Chandra X-ray Observatory Podcasts
NASA's Chandra X-ray Observatory, in orbit since 1999, studies the high-energy Universe, where black holes, exploding stars, and mysterious matter hold sway.
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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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A Tour of NGC 1333
While fireworks only last a short time here on Earth, ...
While fireworks only last a short time here on Earth, a bundle of cosmic sparklers in a nearby cluster of stars will be going off for a very long time.
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A Tour of NGC 5813
Galaxy groups are families of galaxies that are bound together ...
Galaxy groups are families of galaxies that are bound together by gravity. They are very similar to their larger cousins, galaxy clusters.
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Light Beyond the Bulb: Over and Beyond the Rainbow
While scientists and philosophers have tried to figure out exactly ...
While scientists and philosophers have tried to figure out exactly what light is for millennia, it's only been in the past several hundred years or so that we've really started to figure it out.
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A Tour of Circinus X-1
These rings are light echoes, similar to sound echoes that ...
These rings are light echoes, similar to sound echoes that we may experience here on Earth.
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Light Beyond the Bulb: Intro to Light
The year 2015 has been declared to be the International ...
The year 2015 has been declared to be the International Year of Light and Light-based Technologies by the United Nations.
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A Tour of Space-time Foam
Since space-time foam, as it is called, is so tiny, ...
Since space-time foam, as it is called, is so tiny, scientists cannot observe it directly.