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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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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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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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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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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 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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Beyond Pluto: NASA's New Horizons Spacecraft Heads to Next Adventure
To Pluto and beyond!
Nearly two years after its historic encounter with the dwarf planet Pluto, NASA's New Horizons spacecraft is getting ready for its next big adventure in the icy outskirts of the solar system.
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2016 confirmed as the hottest year on record
Another uh oh...
Last year was the hottest year on record globally, beating 2015’s exceptionally high temperatures, the World Meteorological Organisation said today.
The global average temperature in 2016 was 1.1°C higher than pre-industrial levels and about 0.07°C higher than the previous record set in 2015, the organisation said.
Along with record temperatures, other long-term indicators humans are changing the climate reached new heights in 2016, including levels of greenhouse gases and melting ice, the WMO said.
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Electronic gene control could let us plug bacteria into devices
We don’t usually welcome bugs in digital technology, but that’s about to change. Researchers have developed a way to control bacterial genes at the flick of a switch using electricity.
Synthetic biologists are eager to find ways to connect engineered organisms to electronics, so we can make living components for devices.
The ability of custom-made microbes to sense the environment and make biological molecules would be particularly valuable for devices that work inside the body, says William Bentley at the University of Maryland.
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Could space travel make you go blind?
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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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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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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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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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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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Researchers say they've figured out what makes people reject science, and it's not ignorance
A lot happened in 2016, but one of the biggest cultural shifts was the rise of fake news - where claims with no evidence behind them (e.g. the world is flat) and get shared as fact alongside evidence-based, peer-reviewed findings (e.g. climate change is happening).
Researchers have coined this trend the 'anti-enlightenment movement', and there's been a lot of frustration and finger-pointing over who or what's to blame. But a team of psychologists has identified some of the key the factors that can cause people to reject science - and it has nothing to do with how educated or intelligent they are.
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Trump Reportedly Interested in a Mars Mission
Some speculate that incoming President Donald Trump is considering supporting a revamped humans-to-Mars program.
Trump reportedly talked about Mars exploration and public-private partnerships with Elon Musk during a meeting.
Trump also talked with historian Douglas Brinkley about the Apollo program and how it brought the country together in the 1960s.
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Physicists say they've manipulated 'pure nothingness' and observed the fallout
According to quantum mechanics, a vacuum isn't empty at all. It's actually filled with quantum energy and particles that blink in and out of existence for a fleeting moment - strange signals that are known as quantum fluctuations.
For decades, there had only ever been indirect evidence of these fluctuations, but back in 2015, researchers claimed to have detected the theoretical fluctuations directly. And now the same team says they've gone a step further, having manipulated the vacuum itself, and detecting the changes in these strange signals in the void.
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Zebra shark makes world-first switch from sexual to asexual reproduction
A zebra shark (Stegostoma fasciatum) in Australia has become the first recorded case of a shark switching from sexual to asexual reproduction.
In April last year, Leonie gave birth to three pups called Cleo, CC, and Gemini in a Queensland aquarium. This sweet but otherwise unremarkable tale would have gone unnoticed by the science world if it weren't for one key detail: Leonie hadn't mated with a male shark since 2012.
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Drug-resistant "nightmare bacteria" are quickly spreading through US hospitals
Uh oh
Researchers have found evidence that drug-resistant superbugs, which have been labelled "nightmare bacteria", are spreading faster and more stealthily inside US hospitals than previously thought.
In the US, the bacteria, known as carbapenem-resistant Enterobacteriaceae (CRE), infect roughly 9,300 people per year, and kill around 600. And now researchers think they might spread from person to person asymptomatically - which explains why doctors are often unable to detect it.
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Global sea ice is at lowest level ever recorded
It’s a new low point. The area of the world’s oceans covered by floating sea ice is the smallest recorded since satellite monitoring began in the 1970s. That means it is also probably the lowest it has been for thousands of years.
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To the Moon! Private Team Fully Funded for Google Lunar X Prize Race
One of the teams vying to win a $30 million race to the moon has locked up all the funding needed for its lunar mission, team members said.
The GLXP is offering $20 million to the first privately funded team that lands a spacecraft on the moon, moves the vehicle at least 1,640 feet (500 meters) on the lunar surface and has the craft beam high-resolution imagery back to Earth. The second team to do all this gets $5 million. An additional $5 million is available for various special accomplishments, bringing the total purse to $30 million.
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