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Giant gas cloud 'resembles spaghetti' as it plunges toward a black hole

A giant gas cloud is on a suicide mission to the black hole at the center of our galaxy. As the cloud spirals into oblivion, the black hole's extreme gravity is stretching it thinner and thinner.


Series of position-velocity diagrams from 2004 to 2013, which were scaled to identical peak luminosities. Over time, the gas cloud becomes increasingly stretched, as can clearly be seen, due to the gravitational shear of the black hole.

Courtesy of the Max Planck Institute for Extraterrestrial Physics

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We've all heard about black holes, the giant, galactic vacuum cleaners that suck in anything nearby. That's the science fiction version, anyway, and it's reasonably close to reality.

So what happens when you get sucked in? We're about to find out.

A giant cloud of gas is rocketing toward death, spiraling around our galaxy's black hole like water down a drain, but at an unbelievably giant scale.

"As the cloud plunges into a black hole, you're getting a beautiful opportunity to sample the environment near a black hole," says Dale Frail, an astronomer with the National Radio Astronomy Observatory in New Mexico, which was made famous in the movie "Contact." "These things happen once in a lifetime."

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The gas cloud, now named "G2," isn't getting sucked in all at once. The front end – the end closest to the black hole – is being pulled many times faster than the back end, with the result that G2 is getting stretched thinner and thinner, like caramel on a hot day.

"The gas at the head of the cloud is now stretched over more than 160 billion kilometres around the closest point of the orbit to the black hole," wrote Stefan Gillessen, whose team discovered G2, in a statement released Wednesday.


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