A Quick Look at CDF-S XT1 (04-12-2017)
A strange object has been discovered in a region of the sky called the Chandra Deep Field-South.

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--  CDF-S Transient: Mysterious Cosmic Explosion Puzzles Astronomers

A Tour of CDF-S Transient XT1 (03-30-2017)
Scientists have discovered a mysterious flash of X-rays using Chandra X-ray Observatory, in the deepest X-ray image ever obtained.

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--  CDF-S Transient: Mysterious Cosmic Explosion Puzzles Astronomers

A Tour of X9 in 47 Tucanae (03-13-2017)
In astronomy, a binary system is one where two objects are close enough that they orbit each other because they are gravitationally bound to one another.

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--  Star Discovered in Closest Known Orbit Around Likely Black Hole

A Quick Look at X9 in 47 Tucanae (03-13-2017)
The closest orbit between a star and a black hole ever seen has been discovered.

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--  Star Discovered in Closest Known Orbit Around Likely Black Hole

A Quick Look at Supernova 1987A (02-24-2017)
SN 1987A was the brightest supernova seen in over 400 years and relatively close, allowing for detailed studies by many telescopes.

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--  The Dawn of a New Era for Supernova 1987A