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Posts Tagged "galactic center"

Dark Star Diaries

Giving ALMA a Heart Transplant

The Atacama Large Millimeter/submillimeter Array (ALMA). Credit: ESO/C. Malin

Before they can see Sagittarius A*, the black hole at the center of the Milky Way, the astronomers of the Event Horizon Telescope (EHT) must complete an epic to-do list. The most important item on that list: Bring the Atacama Large Millimeter Array (ALMA) into the group. It’s easy to see why. After all, ALMA [...]

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Dark Star Diaries

How to See a Black Hole: Introducing Dark Star Diaries

Sagittarius A*

The image you see here is a computer-generated model of the black hole at the center of the Milky Way, which we call Sagittarius A*. More precisely, it is a model of the “shadow” that Sagittarius A*, with its mass of four million suns, should cast. The glowing blob in the lower right corner is [...]

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Life, Unbounded

Black Holes are Everywhere

Holes are everywhere, if you look...

This post is the second in a series that accompanies the upcoming publication of my book ‘Gravity’s Engines: How Bubble-Blowing Black Holes Rule Galaxies, Stars, and Life in the Cosmos’ (Scientific American/FSG). Black holes, even the really hugely massive ones, are tiny – positively microscopic pinpricks scattered throughout the vastness of spacetime. Even the largest, [...]

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