
Rafi Letzter
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Higgs boson possibly caught in act of never-before-seen transformationIf the Higgs boson really is decaying into pairs of muons in the Large Hadron Collider, that's a big deal for particle physics.
By Rafi Letzter Published
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Warm pasta helps hot, angry neutron stars cool downNeutron stars are like the most efficient thermoses in the universe, filled with hot noodle soup. Here's how, over the course of millions of years, they cool down.
By Rafi Letzter Published
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Weird venomous caterpillars that look like walking toupées are invading VirginiaPus caterpillars have among the most venomous stings of any animal in the United States. And they're having a boom year in Virginia.
By Rafi Letzter Published
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Physicists keep trying to break the rules of gravity but this supermassive black hole just said 'no'A new test of Albert Einstein's theory of general relativity has proved the 20th Century physicist right again, this time using a supermassive black hole.
By Rafi Letzter Published
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Black hole caught turning a poor star into spaghettiThis supermassive black hole gobbled up a star in full view of Earth's telescopes, and could unlock secrets of how these monsters feed.
By Rafi Letzter Published
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Major Hurricane Delta set to batter Louisiana, where many are still homeless after LauraDelta will landfall just miles from the still-devastated Lousiana area where Laura hit in August, continuing a devastating hurricane season.
By Rafi Letzter Published
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Louisiana braces for its 3rd dangerous hurricane in only 6 weeksPeople in Louisiana are still living in tents after Hurricane Laura made landfall in August.
By Rafi Letzter Published
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Something huge ripped the skin off this star before it diedSomething pulled the outer layer of Cassiopeia A off before it detonated to form this gorgeous supernova. But what?
By Rafi Letzter Published
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There’s too much gold in the universe. No one knows where it came from.Something is showering gold across the universe. But no one knows what it is, and key theoretical explanations are falling apart
By Rafi Letzter Published
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Here's everything we know about the secretive spy satellite launching tonightThe U.S. government is putting something big and secret in orbit tonight (Sept 30). Here's the little we can glean from public information.
By Rafi Letzter Published
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Did NASA detect a hint of life on Venus in 1978 and not realize it?What if scientists had started hunting for life on Venus in 1978?
By Rafi Letzter Published
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The 'rubber ducky' comet is glowingThe rubber ducky comet is glowing, but you can't see it. New analysis of data from the Rosetta probe shows an ultraviolet aurora all around the speeding object.
By Rafi Letzter Published
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Earth's new minimoon might be a rocket humans launched into space in the 1960sEarth has a small new moon coming, but it might have been made by people in the 1960s. It will take closer observations to know for sure.
By Rafi Letzter Published
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Tropical storm Beta floods Houston, and days of heavy rainfall are still to comeRoads are flooded again. Protective dunes destroyed. Louisiana is bracing for another impact. And the season still has much more than a month left to go.
By Rafi Letzter Published
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Hidden rivers of warm water threaten vast Antarctic glacierThwaites Glacier holds enough ice to drive up sea levels more than 2 feet. These hidden ducts lubricate its collapse into the ocean.
By Rafi Letzter Published
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Hurricane Sally set to batter a Louisiana still reeling from Hurricane LauraLouisiana already has 23,000 climate refugees living in shelters following Hurricane Laura. Hurricane Sally will flood the region beginning today.
By Rafi Letzter Published
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Possible hint of life discovered on VenusPhosphine, a chemical long thought to be a signature of life, is floating around in the clouds of Venus. How did it get there?
By Rafi Letzter Published
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Physicists who disproved '5th force' win $3 million 'Breakthrough' prizeThree physicists won a $3 million Breakthrough prize for a series of experiments that began using cheap equipment on a tabletop in Seattle and ended up hunting dark matter.
By Rafi Letzter Published
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Dark matter hunter who found unexpected, giant 'Fermi bubbles' wins $100,000 physics prizeTracy Slatyer, known for hunting dark matter in our galaxy and discovering evidence of an ancient Milky Way explosion, has won a $100,000 prize funded by tech billionaires.
By Rafi Letzter Published
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Largest black hole collision ever detectedTwo large black holes crashed together and formed a massive new one — the largest of its kind ever detected, so large that physicists weren't sure it could exist at all.
By Rafi Letzter Published
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The sun may have a long-lost twinThere's a strange sphere of mass at the outer reaches of solar space. Did another star help put it there?
By Rafi Letzter Published
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Can CBD soothe mourning elephants? A Polish zoo is about to find outA zoo in Poland plans to test cannabidiol — also known as CBD, a chemical found in cannabis — on its elephants. The elephants are stressed after a death in the herd.
By Rafi Letzter Published
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Record-setting Hurricane Laura kills 4, leaves trail of destruction across LouisianaThe strongest Gulf hurricane since Katrina barrelled ashore in southwestern Louisiana early this morning (Aug. 27). Floodwaters may not recede for days.
By Rafi Letzter Published
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Laura expected to slam into Texas and Louisiana as a Category 3 hurricaneTropical storm Laura is now a hurricane, and it's expected to grow even stronger as it whirls toward Louisiana and Texas.
By Rafi Letzter Published
