Colossal Flare Could Be First Evidence Energy Can Be Extracted From Black Holes
The popular conception goes that nothing can escape from a black hole. Once something passes the event horizon - the so-called point of no return - it stays there, forever, bound by a gravitational field not even light can escape.
But a rotating black hole generates vast amounts of energy, which, theoretically, can be extracted from the ergosphere, a region that sits just on the outside of the event horizon. This has been shown both theoretically and experimentally - and now a team of astrophysicists has found what they believe is observational evidence for it...
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The popular conception goes that nothing can escape from a black hole. Once something passes the event horizon - the so-called point of no return - it stays there, forever, bound by a gravitational field not even light can escape.
But a rotating black hole generates vast amounts of energy, which, theoretically, can be extracted from the ergosphere, a region that sits just on the outside of the event horizon. This has been shown both theoretically and experimentally - and now a team of astrophysicists has found what they believe is observational evidence for it...
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Colossal Flare Could Be First Evidence Energy Can Be Extracted From Black Holes
The popular conception goes that nothing can escape from a black hole. Once something passes the event horizon - the so-called point of no return - it stays there, forever, bound by a gravitational field not even light can escape.
Was COVID-19 Made in a Lab? An Epidemiologist Reviews The Evidence
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Was COVID-19 Made in a Lab? An Epidemiologist Reviews The Evidence
One of the Big Questions about SARS-CoV-2, the virus that causes COVID-19, has for a while been about its origins. Most viruses that cause disease in humans have long, fascinating origin stories, with jumps from animal to animal until they finally
We Finally Have a Simple System For Naming All The Concerning COVID-19 Variants
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We Finally Have a Simple System For Naming All The Concerning COVID-19 Variants
COVID-19 variants are to be known by letters of the Greek alphabet to avoid stigmatizing nations where they were first detected, the World Health Organization announced Monday.
This 2D Material Is Way Tougher Than Graphene, And Scientists Are Excited
A two-dimensional material with similar physical properties to graphene has now turned out to blow graphene out of the water in terms of toughness.
The material is called hexagonal boron nitride (h-BN), and it's so resistant to cracking that scientists are gobsmacked. The finding flies in the face of the fundamental denoscription of fracture mechanics that scientists have been using to predict and define toughness since the 1920s...
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A two-dimensional material with similar physical properties to graphene has now turned out to blow graphene out of the water in terms of toughness.
The material is called hexagonal boron nitride (h-BN), and it's so resistant to cracking that scientists are gobsmacked. The finding flies in the face of the fundamental denoscription of fracture mechanics that scientists have been using to predict and define toughness since the 1920s...
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This 2D Material Is Way Tougher Than Graphene, And Scientists Are Excited
A two-dimensional material with similar physical properties to graphene has now turned out to blow graphene out of the water in terms of toughness.
We're Going Back to Venus! NASA Announces Two New Missions by 2030
NASA announced two new missions to Venus on Wednesday that will launch at the end of the decade and are aimed at learning how Earth's nearest planetary neighbor became a hellscape while our own thrived.
"These two sister missions both aim to understand how Venus became an inferno-like world, capable of melting lead at the surface," said Bill Nelson, the agency's newly-confirmed administrator...
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NASA announced two new missions to Venus on Wednesday that will launch at the end of the decade and are aimed at learning how Earth's nearest planetary neighbor became a hellscape while our own thrived.
"These two sister missions both aim to understand how Venus became an inferno-like world, capable of melting lead at the surface," said Bill Nelson, the agency's newly-confirmed administrator...
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We're Going Back to Venus! NASA Announces Two New Missions by 2030
NASA announced two new missions to Venus on Wednesday that will launch at the end of the decade and are aimed at learning how Earth's nearest planetary neighbor became a hellscape while our own thrived.
China's Advanced 'Artificial Sun' Fusion Reactor Just Broke a New World Record
China has achieved a new milestone in humanity's experiments to harness the power of the stars.
On Friday, the Chinese Academy of Sciences' fusion machine reached 120 million degrees Celsius and clung onto this for 101 seconds...
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China has achieved a new milestone in humanity's experiments to harness the power of the stars.
On Friday, the Chinese Academy of Sciences' fusion machine reached 120 million degrees Celsius and clung onto this for 101 seconds...
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China's Advanced 'Artificial Sun' Fusion Reactor Just Broke a New World Record
China has achieved a new milestone in humanity's experiments to harness the power of the stars.
In Surprise Discovery, Astronomers Find Huge Star Cluster in Our Cosmic Backyard
A huge cluster of stars has been found lurking in the Milky Way, just a relatively short cosmic distance from our own Solar System.
Now around 75 million years old, the open cluster Valparaíso 1 is estimated to have contained around 10,000 solar masses' worth of stars when it first blazed into existence...
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A huge cluster of stars has been found lurking in the Milky Way, just a relatively short cosmic distance from our own Solar System.
Now around 75 million years old, the open cluster Valparaíso 1 is estimated to have contained around 10,000 solar masses' worth of stars when it first blazed into existence...
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In Surprise Discovery, Astronomers Find Huge Star Cluster in Our Cosmic Backyard
A huge cluster of stars has been found lurking in the Milky Way, just a relatively short cosmic distance from our own Solar System.
Astronomers May Have Just Detected a New Magnetar!
A new discovery could soon be raising the total number of confirmed magnetars to 25.
On 3 June, a brief X-ray burst close to the galactic plane caught the attention of the Swift Burst Alert Telescope (BAT). Follow-up observation and analysis seem to confirm that it was emitted by a previously unknown magnetar, now named Swift
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A new discovery could soon be raising the total number of confirmed magnetars to 25.
On 3 June, a brief X-ray burst close to the galactic plane caught the attention of the Swift Burst Alert Telescope (BAT). Follow-up observation and analysis seem to confirm that it was emitted by a previously unknown magnetar, now named Swift
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Astronomers May Have Just Detected a New Magnetar!
A new discovery could soon be raising the total number of confirmed magnetars to 25.
NASA’s InSight Mars Lander Gets a Power Boost
The spacecraft successfully cleared some dust off its solar panels, helping to raise its energy and delay when it will need to switch off its science instruments.
The team behind NASA’s InSight Mars lander has come up with an innovative way to boost the spacecraft’s energy at a time when its power levels have been falling. The lander’s robotic arm trickled sand near one solar panel, helping the wind to carry off some of the panel’s dust. The result was a gain of about 30 watt-hours of energy per sol, or Martian day...
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The spacecraft successfully cleared some dust off its solar panels, helping to raise its energy and delay when it will need to switch off its science instruments.
The team behind NASA’s InSight Mars lander has come up with an innovative way to boost the spacecraft’s energy at a time when its power levels have been falling. The lander’s robotic arm trickled sand near one solar panel, helping the wind to carry off some of the panel’s dust. The result was a gain of about 30 watt-hours of energy per sol, or Martian day...
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NASA’s InSight Mars Lander Gets a Power Boost
The spacecraft successfully cleared some dust off its solar panels, helping to raise its energy and delay when it will need to switch off its science instruments.
Genius 'Shield' Implant For Diabetes Treatment Shows Great Results in Mouse Study
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Genius 'Shield' Implant For Diabetes Treatment Shows Great Results in Mouse Study
Type 1 diabetes is fundamentally a disease of the immune system. At some point, for some reason, the body's defenses destroy insulin-producing tissues in the pancreas, making it all but impossible to fine-tune the flow of glucose into cells.
For The First Time, Physicists Have Confirmed The Enigmatic Waves That Cause Auroras
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For The First Time, Physicists Have Confirmed The Enigmatic Waves That Cause Auroras
One of the most breathtakingly beautiful sights our skies can muster is the dancing glow of auroral lights. Yet this fascinating phenomenon is still not fully understood.
Ancient 'Megalake': The Largest Lake Ever Held 10 Times The Water of All Lakes Today
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Ancient 'Megalake': The Largest Lake Ever Held 10 Times The Water of All Lakes Today
Some 10 million years ago, the Paratethys Sea megalake – the largest lake in Earth's history – covered an area greater than the size of today's Mediterranean Sea. On a modern map, it would stretch from the Alps above Italy to Kazakhstan in cent
For The First Time, a Blood Test Can Tell if Cancer Treatment Is Working Right Away
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For The First Time, a Blood Test Can Tell if Cancer Treatment Is Working Right Away
When dealing with cancer, finding the most effective treatments as early on as possible can be vital. A new blood test could help doctors determine just that.
A Single Telescope Has Detected Hundreds of Mysterious Radio Signals From Space
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A Single Telescope Has Detected Hundreds of Mysterious Radio Signals From Space
In just its first year of operations, a Canadian radio telescope has quadrupled the number of detections of strange cosmic signals known as extragalactic fast radio bursts.