A radical new hypothesis claims to have a simple explanation for dark energy
For decades, scientists have puzzled over the fact that our Universe is expanding. Logically, gravity should be pulling our galaxies closer together, but observations in the 1990s revealed that the Universe isn't just expanding, it's expanding at a seemingly accelerating rate, something scientists put down to dark energy.
Dark energy (not to be confused with dark matter) is the hypothetical force that makes up around 68.3 percent of the energy in the observable Universe, and pushes galaxies apart. But despite lots of indirect evidence for its existence, no one has been able to directly detect dark energy, or adequately explain where it comes from.
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For decades, scientists have puzzled over the fact that our Universe is expanding. Logically, gravity should be pulling our galaxies closer together, but observations in the 1990s revealed that the Universe isn't just expanding, it's expanding at a seemingly accelerating rate, something scientists put down to dark energy.
Dark energy (not to be confused with dark matter) is the hypothetical force that makes up around 68.3 percent of the energy in the observable Universe, and pushes galaxies apart. But despite lots of indirect evidence for its existence, no one has been able to directly detect dark energy, or adequately explain where it comes from.
Article
@EverythingScience
Telegraph
A radical new hypothesis claims to have a simple explanation for dark energy
For decades, scientists have puzzled over the fact that our Universe is expanding. Logically, gravity should be pulling our galaxies closer together, but observations in the 1990s revealed that the Universe isn't just expanding, it's expanding at a seemingly…
A new 'flesh-eating parasite' relative has been discovered in Australia
A new study has discovered a new species of parasite living in Australia, which shares an evolutionary ancestor to a terrifying group of 'flesh-eating' parasites.
The new parasite - Zelonia australiensis has recently been discovered in an Australian black fly species that bites mammals – including humans.
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A new study has discovered a new species of parasite living in Australia, which shares an evolutionary ancestor to a terrifying group of 'flesh-eating' parasites.
The new parasite - Zelonia australiensis has recently been discovered in an Australian black fly species that bites mammals – including humans.
Article
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Telegraph
A new 'flesh-eating parasite' relative has been discovered in Australia
A new study has discovered a new species of parasite living in Australia, which shares an evolutionary ancestor to a terrifying group of 'flesh-eating' parasites. The new parasite - Zelonia australiensis has recently been discovered in an Australian black…
Light-speed camera snaps light’s “sonic boom” for the first time
A light-speed event requires an even faster camera. A new camera setup has captured the first film of a photonic Mach cone – basically, a sonic boom with light – in real time.
“Our camera is different from a common camera where you just take a snapshot and record one image: our camera works by first capturing all the images of a dynamic event into one snapshot. And then we reconstruct them, one by one,” says Jinyang Liang at Washington University in St Louis.
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A light-speed event requires an even faster camera. A new camera setup has captured the first film of a photonic Mach cone – basically, a sonic boom with light – in real time.
“Our camera is different from a common camera where you just take a snapshot and record one image: our camera works by first capturing all the images of a dynamic event into one snapshot. And then we reconstruct them, one by one,” says Jinyang Liang at Washington University in St Louis.
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Telegraph
Light-speed camera snaps light’s “sonic boom” for the first time
A light-speed event requires an even faster camera. A new camera setup has captured the first film of a photonic Mach cone – basically, a sonic boom with light – in real time.“Our camera is different from a common camera where you just take a snapshot and…
Chunks of Failed Planets Might Have Scarred Early Earth
The rocky worlds of the solar system may bear scars from the debris that didn't quite make the cut as planets, a new research suggests.
Billions of years ago, when the solar system was very young, showers of material slammed into the infant Earth, its moon and Mars, in a period known as the Late Heavy Bombardment (LHB).
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The rocky worlds of the solar system may bear scars from the debris that didn't quite make the cut as planets, a new research suggests.
Billions of years ago, when the solar system was very young, showers of material slammed into the infant Earth, its moon and Mars, in a period known as the Late Heavy Bombardment (LHB).
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Telegraph
Chunks of Failed Planets Might Have Scarred Early Earth
The rocky worlds of the solar system may bear scars from the debris that didn't quite make the cut as planets, a new research suggests. Billions of years ago, when the solar system was very young, showers of material slammed into the infant Earth, its moon…
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Lights Out: Asteroid Triggered Freezing Darkness That Killed Dinos
When a giant asteroid careened into Earth about 66 million years ago, the enormous collision led to the formation of an airborne "curtain" of sulfate molecules that blocked the sun's light and led to years of freezing cold and darkness, a new study finds.
The finding shows how these droplets, or aerosols, of sulfuric acid formed high in the atmosphere, and likely contributed to the deaths of 75 percent of all animals on Earth, including nonavian dinosaurs such as Tyrannosaurus rex and long-necked sauropods, the researchers said.
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When a giant asteroid careened into Earth about 66 million years ago, the enormous collision led to the formation of an airborne "curtain" of sulfate molecules that blocked the sun's light and led to years of freezing cold and darkness, a new study finds.
The finding shows how these droplets, or aerosols, of sulfuric acid formed high in the atmosphere, and likely contributed to the deaths of 75 percent of all animals on Earth, including nonavian dinosaurs such as Tyrannosaurus rex and long-necked sauropods, the researchers said.
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Telegraph
Lights Out: Asteroid Triggered Freezing Darkness That Killed Dinos
When a giant asteroid careened into Earth about 66 million years ago, the enormous collision led to the formation of an airborne "curtain" of sulfate molecules that blocked the sun's light and led to years of freezing cold and darkness, a new study finds.The…
DISCLAIMER: THE FOLLOWING IS JUST A CONSPIRACY THEORY AND IS NOT TO BE TAKEN SERIOUSLY
A doomsday asteroid will hit Earth next month and trigger devastating mega-tsunamis, claims conspiracy theorist
Last year Nasa detected an object, that could be a comet or an asteroid, on a path towards Earth.
The space agency has said the mysterious object will safely pass Earth at a distance of nearly 32 million miles (51 million kilometres) on February 25th.
But one self-proclaimed astronomer has come up with an alternative theory, suggesting the asteroid will crash into Earth on February 16th and trigger a mega-tsunami, according to reports.
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A doomsday asteroid will hit Earth next month and trigger devastating mega-tsunamis, claims conspiracy theorist
Last year Nasa detected an object, that could be a comet or an asteroid, on a path towards Earth.
The space agency has said the mysterious object will safely pass Earth at a distance of nearly 32 million miles (51 million kilometres) on February 25th.
But one self-proclaimed astronomer has come up with an alternative theory, suggesting the asteroid will crash into Earth on February 16th and trigger a mega-tsunami, according to reports.
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Telegraph
A doomsday asteroid will hit Earth next month and trigger devastating mega-tsunamis, claims conspiracy theorist
- Nasa spotted an object called 2016 WF9, that's on its way towards Earth- The space rock is believed to be 0.3 to 0.6 miles (0.5 to 1 kilometre) across.- The agency is tracking the asteroid and says it will pass 32 million miles away- But a conspiracy theorist…
Shooting electron waves through plasma could reveal if black holes permanently destroy information
One of the greatest dilemmas in astrophysics is the black hole paradox - if black holes really do destroy every scrap of information that enters them.
Now, physicists might have finally come up with a way to test the paradox once and for all, by accelerating a wave of negatively charged electrons through a cloud of plasma.
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One of the greatest dilemmas in astrophysics is the black hole paradox - if black holes really do destroy every scrap of information that enters them.
Now, physicists might have finally come up with a way to test the paradox once and for all, by accelerating a wave of negatively charged electrons through a cloud of plasma.
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Telegraph
Shooting electron waves through plasma could reveal if black holes permanently destroy information
One of the greatest dilemmas in astrophysics is the black hole paradox - if black holes really do destroy every scrap of information that enters them. Now, physicists might have finally come up with a way to test the paradox once and for all, by accelerating…
Planet Earth makes its own water from scratch deep in the mantle
Our planet may be blue from the inside out. Earth’s huge store of water might have originated via chemical reactions in the mantle, rather than arriving from space through collisions with ice-rich comets.
This new water may be under such pressure that it can trigger earthquakes hundreds of kilometres below Earth’s surface – tremors whose origins have so far remained unexplained. That’s the upshot of a computer simulation of reactions in Earth’s upper mantle between liquid hydrogen and quartz, the most common and stable form of silica in this part of the planet.
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Our planet may be blue from the inside out. Earth’s huge store of water might have originated via chemical reactions in the mantle, rather than arriving from space through collisions with ice-rich comets.
This new water may be under such pressure that it can trigger earthquakes hundreds of kilometres below Earth’s surface – tremors whose origins have so far remained unexplained. That’s the upshot of a computer simulation of reactions in Earth’s upper mantle between liquid hydrogen and quartz, the most common and stable form of silica in this part of the planet.
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@ESHUB
Telegraph
Planet Earth makes its own water from scratch deep in the mantle
Our planet may be blue from the inside out. Earth’s huge store of water might have originated via chemical reactions in the mantle, rather than arriving from space through collisions with ice-rich comets. This new water may be under such pressure that it…
Astronomers measure universe expansion, get hints of 'new physics'
stronomers have just made a new measurement of the Hubble Constant, the rate at which the universe is expanding, and it doesn't quite line up with a different estimate of the same number. That discrepancy could hint at "new physics" beyond the standard model of cosmology, according to the team, which includes physicists from the University of California, Davis, that made the observation.
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stronomers have just made a new measurement of the Hubble Constant, the rate at which the universe is expanding, and it doesn't quite line up with a different estimate of the same number. That discrepancy could hint at "new physics" beyond the standard model of cosmology, according to the team, which includes physicists from the University of California, Davis, that made the observation.
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Telegraph
Astronomers measure universe expansion, get hints of 'new physics'
Astronomers have just made a new measurement of the Hubble Constant, the rate at which the universe is expanding, and it doesn't quite line up with a different estimate of the same number. That discrepancy could hint at "new physics" beyond the standard model…
NASA 'Cuts Live Feed From ISS' Again After Another 'Alien' Sighting
Has NASA tried to cover up another alien sighting? UFO conspiracy theorists believe so but how true are these allegations?
John Craddick, an alien hunter from Wolverhampton, said that he was watching the live feeds from NASA's International Space Station (ISS) for years and hasn't seen anything extraordinary. However, on January 20, he was teaching his friend how to use the live feed when he spotted what appeared to be a UFO.
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Has NASA tried to cover up another alien sighting? UFO conspiracy theorists believe so but how true are these allegations?
John Craddick, an alien hunter from Wolverhampton, said that he was watching the live feeds from NASA's International Space Station (ISS) for years and hasn't seen anything extraordinary. However, on January 20, he was teaching his friend how to use the live feed when he spotted what appeared to be a UFO.
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@ESHUB
Telegraph
NASA 'Cuts Live Feed From ISS' Again After Another 'Alien' Sighting
Has NASA tried to cover up another alien sighting? UFO conspiracy theorists believe so but how true are these allegations? John Craddick, an alien hunter from Wolverhampton, said that he was watching the live feeds from NASA's International Space Station…
Physicists have found a metal that conducts electricity but not heat
Researchers have identified a metal that conducts electricity without conducting heat - an incredibly useful property that defies our current understanding of how conductors work.
The metal contradicts something called the Wiedemann-Franz Law, which basically states that good conductors of electricity will also be proportionally good conductors of heat, which is why things like motors and appliances get so hot when you use them regularly.
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Researchers have identified a metal that conducts electricity without conducting heat - an incredibly useful property that defies our current understanding of how conductors work.
The metal contradicts something called the Wiedemann-Franz Law, which basically states that good conductors of electricity will also be proportionally good conductors of heat, which is why things like motors and appliances get so hot when you use them regularly.
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Telegraph
Physicists have found a metal that conducts electricity but not heat
Researchers have identified a metal that conducts electricity without conducting heat - an incredibly useful property that defies our current understanding of how conductors work. The metal contradicts something called the Wiedemann-Franz Law, which basically…
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Over the last week, 27 teams have been on site at SpaceX in preparation for this weekend’s Hyperloop Pod Competition just outside SpaceX headquarters in Hawthorne, CA. The purpose of the competition is to help accelerate the development of a functional Hyperloop prototype and encourage student innovation by challenging university students to design and build the best Hyperloop pod. This competition is the first of its kind anywhere in the world—
teams have put their pods through a litany of tests over the last week in hopes of making it into the Hyperloop test track itself.
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Over the last week, 27 teams have been on site at SpaceX in preparation for this weekend’s Hyperloop Pod Competition just outside SpaceX headquarters in Hawthorne, CA. The purpose of the competition is to help accelerate the development of a functional Hyperloop prototype and encourage student innovation by challenging university students to design and build the best Hyperloop pod. This competition is the first of its kind anywhere in the world—
teams have put their pods through a litany of tests over the last week in hopes of making it into the Hyperloop test track itself.
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Earth’s magnetic poles are set to swap places - and we're totally unprepared
Earth’s magnetic field surrounds our planet like an invisible force field - protecting life from harmful solar radiation by deflecting charged particles away. Far from being constant, this field is continuously changing.
Indeed, our planet’s history includes at least several hundred global magnetic reversals, where north and south magnetic poles swap places. So when’s the next one happening and how will it affect life on Earth?
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Earth’s magnetic field surrounds our planet like an invisible force field - protecting life from harmful solar radiation by deflecting charged particles away. Far from being constant, this field is continuously changing.
Indeed, our planet’s history includes at least several hundred global magnetic reversals, where north and south magnetic poles swap places. So when’s the next one happening and how will it affect life on Earth?
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Telegraph
Earth’s magnetic poles are set to swap places - and we're totally unprepared
Earth’s magnetic field surrounds our planet like an invisible force field - protecting life from harmful solar radiation by deflecting charged particles away. Far from being constant, this field is continuously changing. Indeed, our planet’s history includes…
Possible sign of dark matter shows up again
A strange X-ray signal has popped up again in new measurements, raising hopes that it could be a sign of dark matter.
Data from NASA’s Chandra X-ray Observatory reveal an excess of X-rays at a particular energy, creating a bump on a plot, scientists report online at arXiv.org on January 29. The X-ray “line,” as it is known, could reveal the presence of dark matter — an unknown substance that scientists believe constitutes most of the matter in the cosmos.
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A strange X-ray signal has popped up again in new measurements, raising hopes that it could be a sign of dark matter.
Data from NASA’s Chandra X-ray Observatory reveal an excess of X-rays at a particular energy, creating a bump on a plot, scientists report online at arXiv.org on January 29. The X-ray “line,” as it is known, could reveal the presence of dark matter — an unknown substance that scientists believe constitutes most of the matter in the cosmos.
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Telegraph
Possible sign of dark matter shows up again
A strange X-ray signal has popped up again in new measurements, raising hopes that it could be a sign of dark matter. Data from NASA’s Chandra X-ray Observatory reveal an excess of X-rays at a particular energy, creating a bump on a plot, scientists report…
These Powerful Blazars Are the Most Distant Ever Seen
Monster black holes shooting jets of gamma-ray radiation right at us have been spotted farther away than ever before, dating back to when the universe was nearly one-tenth its current age.
The five distant objects, called gamma-ray blazars, deepen the mystery of how black holes so large could have formed so early in the universe's history.
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Monster black holes shooting jets of gamma-ray radiation right at us have been spotted farther away than ever before, dating back to when the universe was nearly one-tenth its current age.
The five distant objects, called gamma-ray blazars, deepen the mystery of how black holes so large could have formed so early in the universe's history.
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Telegraph
These Powerful Blazars Are the Most Distant Ever Seen
Monster black holes shooting jets of gamma-ray radiation right at us have been spotted farther away than ever before, dating back to when the universe was nearly one-tenth its current age. The five distant objects, called gamma-ray blazars, deepen the mystery…
One of our oldest ancestors has been discovered, and it had a big mouth and no butt
Palaeontologists have added another snapshot to our ancestral family album with the discovery of one of the oldest fossils that can be linked to human ancestry.
The researchers analysed 45 fossils roughly the size and shape of a grain of rice found in sedimentary rock from China’s Shaanxi province, and determined that they belonged to an as-yet-undescribed species of animal that's distantly related to humans.
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Palaeontologists have added another snapshot to our ancestral family album with the discovery of one of the oldest fossils that can be linked to human ancestry.
The researchers analysed 45 fossils roughly the size and shape of a grain of rice found in sedimentary rock from China’s Shaanxi province, and determined that they belonged to an as-yet-undescribed species of animal that's distantly related to humans.
Article
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@ESHUB
Telegraph
One of our oldest ancestors has been discovered, and it had a big mouth and no butt
Palaeontologists have added another snapshot to our ancestral family album with the discovery of one of the oldest fossils that can be linked to human ancestry. The researchers analysed 45 fossils roughly the size and shape of a grain of rice found in sedimentary…