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Stephen Hawking’s legacy honoured with new 50p coin

sudshr47 March 12, 2019

It’s hard to imagine how you’d get something as massive as a black hole onto something as small as a 50p ($0.65) coin. But the Royal Mint just did exactly that.

In honour of the renowned British theoretical physicist Stephen Hawking, who passed away in 2018, the Royal Mint is issuing a special coin featuring a black hole design and the equation S=kAc^3/4hG, the so-called Bekenstein–Hawking equation.

The Royal Mint shared a video of the coin on Twitter, saying that the coin is in commemoration of Hawking’s “outstanding contribution to science.” Read more…

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Black hole shreds a star, then blasts illuminating energy into space

sudshr47 January 9, 2019

Ages ago, in a galaxy some 300 million light years away, an unwitting star veered fatally close to a powerful black hole. After shredding the star apart, the black hole ejected pulses of energy into the cosmos.
Astronomers received this ancient signa…

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Stephen Hawking’s final paper about black holes is now online

sudshr47 October 13, 2018

Stephen Hawking passed away earlier this year at the age of 76, but his incredible intellect isn’t yet done contributing to the scientific community. The acclaimed physicist’s final paper is now online for anyone to read and it revisits some mysteries of the physical world that came to define his illustrious career. Titled “Black Hole […]

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For the first time, an elusive ghost particle blasted from deep space is seen on Earth

sudshr47 July 12, 2018

Billions of years ago, a supermassive black hole feeding on gas and dust in the center of a galaxy spit out a subatomic ghost.

That ghost particle — known as a neutrino — has quietly made its journey through the cosmos, across billions of light-years and arrived on Earth, where a large group of neutrino-hunting scientists were waiting to see it.

A giant detector located in Antarctica caught sight of the neutrino sent into space by that feeding black hole, known as a blazar, marking the first detection of its kind in history. The groundbreaking new finding is detailed in two papers published in the journal Science Thursday. Read more…

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Black hole eats and destroys hapless star which wandered too close

sudshr47 June 15, 2018

Beware of the hungry black hole.
Astronomers tracked a supermassive black hole, 20 million times larger than the sun, which ate up and destroyed a star that came too close.
SEE ALSO: Three baby planets hanging around a star discovered by astronomers
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Hungry, hungry black hole would take only two days to eat the mass of our sun

sudshr47 May 15, 2018

Even black holes get hungry.

Astronomers have just discovered a black hole that’s growing faster than any other black hole yet found in the universe.

If the sun were to fall into this incredibly dense cosmic object, it would only take two days for the black hole to devour it, the scientists behind the new discovery have said.

The supermassive black hole — which is located billions of light-years away — is thought to be the mass of 20 billion suns and grows by about 1 percent every 1 million years, according to the new study detailing the discovery of the black hole. Read more…

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Thousands of previously unseen black holes lurk near the center of our galaxy

sudshr47 April 5, 2018

The heart of the Milky Way is stacked with black holes.

According to a new study published this week in the journal Nature, the center of our galaxy appears to play host to more than 10,000 relatively small black holes that we have gone undiscovered until now.

These black holes could help us explain the history of the Milky Way and understand other galaxies on a grand scale.

Some of these black holes — objects so dense that light can’t even escape them — interact with stars and the supermassive black hole called Sagittarius A* (pronounced “Sagittarius A-Star”) that functions as the core of the Milky Way. Read more…

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Stephen Hawking wants his most famous formula engraved on his tombstone: Here’s what it means

sudshr47 March 14, 2018

In 1974, long before Stephen Hawking was the famous cosmologist he became, he developed his most influential theory.

That concept, which came to be known as Hawking radiation, explained how energy and even matter could escape the immense gravitational pull of a black hole.

On Wednesday, Hawking died at the age of 76, but his scientific theory lives on. And in fact, Hawking himself will make sure of it, even in death.

In 2002, the famous scientist said that he wants his formula for Hawking radiation — originally put forward in a 1974 paper in the journal Nature — engraved on his tombstone, according to the New York Times. Read more…

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