Planetary nebula NGC 6826. Our own Sun will experience the planetary nebula phase of stellar evolution several billion years from now.

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The Secret X-Ray Lives of Cepheids: The Surprising Discovery of a New Class of Pulsating X-Ray Stars: ow.ly/pRXM30acxNB
Today, Chandra is observing the remnant of a star much more massive than the Sun, E0102. The star's explosion would have been visible from Earth's Southern Hemisphere over 1000 years ago!
A supernova shock wave breaking through a cocoon of gas about 160 million light years away in the Leo constellation.

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In 1006 CE, what was thought to be a new star suddenly appeared. In a few days, it was brighter than Venus! SN 1006 may have been the brightest supernova on record.

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A violent collision of two clusters of galaxies formed the Bullet Cluster about 3.8 billion light years away.

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Planetary nebulae are so named because they can resemble planets from afar. In reality, they are dying stars.

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A powerful microquasar containing a black hole in the nearby galaxy NGC 7793 about 12.7 million light years away.

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Powered by a supermassive black hole, light from this quasar took 6 billion years to reach our eyes!

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At less than 4,600 years old, X-ray binary Circinus X-1 is one of the youngest of its kind ever seen!

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Pi has been calculated to over a trillion digits. That's only about as many stars as there are in Andromeda. Happy Pi Day! 3.14
"Stella! Stella!" Stellar evolution! This storm of star birth in NGC 281 is only about 9,000 light years away, above the plane of our Milky Way galaxy.

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News: Star in the closest orbit around a black hole ever seen! This extraordinarily close binary is found in 47 Tucanae, a dense cluster of stars on the edge of the Milky Way.

More: [ Chandra.si.edu Link ]
The wispy pink shell of gas in this image is supernova remnant N132D. The greens are small, organic molecules.

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This X-ray image of Centaurus A shows a monstrous jet blasting away from a central, supermassive black hole.

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Galaxy NGC 3115 has a supermassive black hole at its center with a mass of about 2 billion times that of the Sun!

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The remains of a supernova in the Small Magellanic Cloud, SNR 0104 is about 190,000 light years from Earth in the constellation Tucana.

Want to know more? chandra.si.edu/photo/2009/snr0104/
At the heart of this stunning image is the Cartwheel Galaxy. The galaxy is about 400 million light years from Earth in the constellation Sculptor.

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Pandora's Cluster: A dramatic collision between galaxy clusters about 3.5 billion light years from Earth in the constellation Sculptor.

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The Rosette Nebula is a star-forming region in the constellation Monoceros, the Unicorn. Hundreds and hundreds of stars are being born in this region of the Milky Way about 5,000 light years from Earth.

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