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Recent Podcast
A Quick Look at a Cosmic Jekyll and Hyde
A Quick Look at a Cosmic Jekyll and Hyde
Astronomers have spotted a double star system is flip-flopping between two alter egos using NASA's Chandra X-ray Observatory and other telescopes. (2020-02-20)

ESO 137 in 60 Seconds

Narrator (Megan Watzke, CXC): Two spectacular tails of X-ray emission have been seen trailing behind a galaxy known as ESO 137. This composite image shows X-rays from Chandra in blue, optical emission in yellow and emission from hydrogen light in red. The X-ray tails were created when cool gas from the galaxy (with a temperature of about ten degrees above absolute zero) was stripped by hot gas of about 100 million degrees as it travels through the center of the galaxy cluster. The stripping of this cool gas could be leading to new stars being formed in the tails behind the galaxy. This would be the first time such a thing had ever been seen.

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