A Quick Look at NGC 4696 (04-19-2017)
Astronomers have found a black hole that has erupted multiple times in the past, about every 5 to 10 million years.

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--  NGC 4696: The Arrhythmic Beating of a Black Hole Heart

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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- Related Links:
--  Star Discovered in Closest Known Orbit Around Likely Black Hole