Mouth of Giant Black Hole Measured for First Time - Space.com [fornadablog.blogspot.com]
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[fornadablog.blogspot.com], Mouth of Giant Black Hole Measured for First Time - Space.com
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| This image from a simulation shows an energy jet launched from a spinning black hole surrounded by a disk of accreting material. The black hole is spinning at half the maximum rate, and its mass is that of the black hole at the center of the M87 elliptical galaxy. The central black hole 'shadow' due to extreme light bending is apparent in this simulation. CREDIT: Avery E. Broderick (University of Waterloo/Perimeter Institute) |
For the first time, scientists have peered to the edge of a colossal black hole and measured the point of no return for matter.
A black hole has a boundary called an event horizon. Anything that falls within a black hole's event horizon â€" be it stars, gas, or even light â€" can never escape.
"Once objects fall through the event horizon, they're lost forever," Shep Doeleman, assistant director of the MIT Haystack Observatory and research associate at the Smithsonian Astrophysical Observatory, said in a statement Thursday (Sept. 27). "It's an exit door from our universe. You walk through that door, you’re not coming back."
Although the event horizon is an imaginary line that's impossible to observe, astronomers have imaged the region around a giant black hole at the center of a distant galaxy, and measured, for the first time, the closest stable orbit in which matter can circle the black hole. The findings were reported today in the journal Science.
The supermassive black hole in question lies at the center of the galaxy M87, which is about 50 million light-years from our own Milky Way. This behemoth black hole contains the mass of 6 billion suns.
CREDIT: Avery E. Broderick (University of Waterloo/Perimeter Institute)
Using a new observatory called the Event Horizon Telescope, which links up radio dishes in Hawaii, Arizona and California, astronomers measured that the innermost possible orbit for matter around the black hole is roughly 5.5 times the size of the black hole's event horizon.
This innermost orbit is about five times the size of the solar system, or 750 times the distance from Earth to the sun, Doeleman told SPACE.com. The distance between the Earth and the sun is nearly 93 million miles (150 million kilometers).
The observations allowed the researchers to confirm that this swirling mass around the black hole is the source of the powerful jets of light seen radiating from the galaxy. Many galaxies throughout the universe spot similar jets, thought to be produced by matter falling into their central black holes. Until now, no telescope has had the resolution power to verify the idea.
The Event Horizon Telescope is a new project that aims to link as many as 50 radio dishes around the world to work in concert to image the distant universe. Already, the observatory can see celestial objects with 2,000 times more detail than the Hubble Space Telescope.
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Black Hole Quiz: Test Your Knowledge of Nature's We...
Black holes are so bizarre, they sound unreal. Yet astronomers have found good evidence they exist. Test your knowledge of these wacky wonders.
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Black Hole Quiz: Test Your Knowledge of Nature's We...
Black holes are so bizarre, they sound unreal. Yet astronomers have found good evidence they exist. Test your knowledge of these wacky wonders.
0 of questions complete
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Question by Mmmcookies: What is the "bitter water" women had to drink in Numbers 5:21-28? Numbers 5:21-28 outlines a procedure with which wives accused of infidelity are forced made to drink "bitter water" as part of a ritual that is supposed to make them miscarry if they're guilty but not if they're innocent. Does anybody have any idea what this "bitter water" is? Best answer for What is the "bitter water" women had to drink in Numbers 5:21-28?:
Answer by The Blunt Ugly Truth Answer by Mari Answer by Virginia Green Answer by Rainbow-Starlight Girl Answer by Cooperative Economy
Their husband's pee.
It was probably vinegar
Really , is it pee? ...wow...ewww
Wine?
I believe it is vinegar.
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