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Five by Five

In Black Holes by Brian Koberlein1 Comment

Many supermassive black holes are surrounded by gas and dust, and so aren’t easily observed. But new observations from NuSTAR has peered through the dust in five galaxies.

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Peribothron

In Black Holes by Brian Koberlein2 Comments

A young star known as G2 has made its closest approach to the supermassive black hole in our galaxy. This has given rise to a term known as peribothron.

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Little Bang

In Black Holes by Brian Koberlein2 Comments

In the center of our galaxy there is a supermassive black hole known as Sgr A*. Through observations of stars orbiting the black hole, we know it has a mass of about 4 million Suns. Normally this black hole is pretty quiet, but in 2013 there was an unexpected x-ray burst.