Thursday, January 2, 2020

What would happen if you fell into a black hole? | Popular Science

If you search "black hole" on the internet, at least one of the top results will claim to tell you what could happen if a person fell into one.

But to save you a lot of time and fruitless reading, the short, honest, but perhaps least thrilling answer is that no one really knows. Don't fret. Scientists have some well-founded, albeit mind-bending ideas about what might be going on. To understand them, though, you first need to grasp some basic concepts about black holes.

Publisher: Popular Science
Twitter: @popsci
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While you're here, how about this:

Top 9 EarthSky stories of 2019 | Human World | EarthSky

From the 1st landing on the moon’s far side to the 1st actual image of a black hole, here's a quick roundup of 9 of the stories our readers enjoyed most in 2019.

Who could forget this image? It’s the first direct image of a black hole, in the galaxy M87, released in April 2019. This long-sought image provided the strongest evidence to date for the existence of supermassive black holes and opened a new window onto the study of black holes, their event horizons, and gravity. Image via Event Horizon Telescope Collaboration.

Publisher: EarthSky
Date: 2019-12-29T05:15:02-06:00
Author: Eleanor Imster
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Congratulations, You Survived Black Hole Week - The New York Times

With everything else that has been going on lately down here on this planet, you might not have noticed that there has been a lot of news lately about black holes, those Einsteinian monsters that can swallow light and everything else, behaving badly. Black holes eating stars, or whole gangs of them. Black holes burping energy from the centers of galaxies. Black holes banging together in universe-shaking events.

It sounds like cosmology according to Stephen King. Over the summer I was on a lake in Peru, where the water was boiling with feeding piranha, their little black fins furiously breaking the surface. I was safe in the boat. Then.

Date: 2019-09-27T20:28:49.000Z
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Take a Fun Trip into a Black Hole: What's It Like Inside? | Space

First, we need to clear up some definitions. There are many kinds of black holes: some big ones, some small ones, some with electric charges, some without, and some with rapid rotations and others more sedentary. For the purposes of our adventure in this particular tale, I'm going to stick to the simplest possible scenario: a giant black hole with no electric charge and no spin whatsoever.

From a distance the black hole is surprisingly benign. After all, it's just a massive object, pretty much like any other massive object. Gravity is gravity and mass is mass — a black hole with the mass of, say, the sun will pull on you exactly the same as the sun itself. All that's missing is the wonderful heat and light and warmth and radiation. But if you felt like orbiting it at a safe distance, you most certainly could.

Publisher: Space.com
Date: 2019-11-18T12:27:56+00:00
Author: https www facebook com spacecom
Twitter: @SPACEdotcom
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This may worth something:

What Is a Black Hole? Here's Our Guide for Earthlings - The New York Times

We have seen and taken a picture of a black hole. Here it is. This is a remarkable achievement. What you're seeing here is the last photon orbit. What you are seeing is evidence of an event horizon. By laying a ruler across this black hole, we now have visual evidence for a black hole. We now know that a black hole that weighs 6.5 billion times what our sun does exists in the center of M87. And this is the strongest evidence that we have to date for the existence of black holes.

Date: 2019-04-10T13:40:23.000Z
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"Iconic" --New Images of the Milky Way and Whale Galaxies | The Daily Galaxy

Huge golden filaments indicate enormous magnetic fields, supernova remnants are visible as little spherical bubbles, and regions of massive star formation show up in blue. The supermassive black hole at the center of our galaxy is hidden in the bright white region in the center.

"This new view captures low-frequency radio emission from our galaxy, looking both in fine detail and at larger structures," she said. "Our images are looking directly at the middle of the Milky Way, towards a region astronomers call the Galactic Center."

Publisher: The Daily Galaxy
Date: 2020-01-02T15:42:11+00:00
Twitter: @dailygalaxy
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Cope’s ‘Burst’ show sparks light in dark of winter | Peninsula Clarion

Carla Cope’s “Burst” is a 16-foot mural on display at K-Bay Caffe, as seen in this photo taken on Dec. 16, 2019, in Homer, Alaska. (Photo by Michael Armstrong/Homer News)

Publisher: Peninsula Clarion
Date: 2020-01-01T01:30:00-09:00
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The best science images of the year: 2019 in pictures

French researchers carved a labyrinth of microfluidic chambers in a silicon wafer to mimic blood flows in circulatory networks. Biophysicist BenoƮt Charlot at the University of Montpellier, France, captured this image using a scanning electron microscope.

Each tiny dot in this circle represents one of around 100,000 cells from rhesus macaque monkeys. Cells with similar traits cluster together, and each colour represents different tissues such as the thymus and lymph nodes (blue) and bone marrow (red).

Date: 2019-12-16
Twitter: @nature
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