Fifty years ago, scientists discovered that the Earth is occasionally hit by cosmic rays of enormous energies. Since then, they have argued about the source of those ultra-high energy cosmic rays - whether they came from our galaxy or outside the Milky Way.
Sep 22nd, 2017
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Charged particles may be small, but they matter to astronauts. NASA's Human Research Program (HRP) is investigating these particles to solve one of its biggest challenges for a human journey to Mars: space radiation and its effects on the human body.
Sep 22nd, 2017
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The most-studied galaxy in the universe - the Milky Way - might not be as 'typical' as previously thought, according to a new study.
Sep 20th, 2017
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In the faint southern constellation of Antlia the careful observer with binoculars will spot a very red star, which varies slightly in brightness from week to week. This very unusual star is called U Antliae and new observations are revealing a remarkably thin spherical shell around it.
Sep 20th, 2017
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A group-analysis of 30 exoplanets orbiting distant stars suggests that size, not mass, is a key factor in whether a planet?s atmosphere can be detected.
Sep 19th, 2017
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A study using multiple radio telescopes confirms that supermassive black holes found in the centers of galaxies can form gravitationally bound pairs when galaxies merge.
Sep 18th, 2017
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The spacecraft, now a memory, leaves us with an enormous legacy - a dataset that will take decades to fully exploit.
Sep 18th, 2017
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New study invokes intriguing self-interacting dark matter theory.
Sep 14th, 2017
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Astronomers focused the Hubble Space Telescope on an exoplanet that had already been seen losing its atmosphere, which forms an enormous cloud of hydrogen, giving the planet the appearance of a giant comet.
Sep 14th, 2017
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In research that may prove useful to future lunar explorers, scientists have created the first quantitative map of water and its chemical building blocks trapped in the uppermost portion of the Moon's soil.
Sep 13th, 2017
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For the first time astronomers have measured how a galaxy's spin affects its shape.
Sep 11th, 2017
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Astronomers found that active star formation upswells galaxies, like yeast helps bread rise.
Sep 11th, 2017
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A group of scientists have turned exoplanet-hunting on its head, in a study that instead looks at how an alien observer might be able to detect Earth using our own methods.
Sep 8th, 2017
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An international team of researchers has discovered a way to use observations at ultraviolet (UV) wavelengths to uncover characteristics about superluminous supernovae previously impossible to determine.
Sep 7th, 2017
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The Rosetta space probe discovered a large amount of organic material in the nucleus of comet 'Chury'. Two researchers advance the theory that this matter has its origin in interstellar space and predates the birth of the Solar System.
Sep 6th, 2017
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Astronomers have discovered two rapidly rotating radio pulsars with the Low-Frequency Array (LOFAR) radio telescope by investigating unknown gamma-ray sources uncovered by NASA's Fermi Gamma-ray Space Telescope.
Sep 5th, 2017
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New research revealed that the entire zoo of electromagnetic radiation streaming from the Crab Nebula has its origin in one population of electrons and must be produced in a different way than scientists have.
Sep 4th, 2017
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'Primordial black holes', believed to have formed shortly after the Big Bang, might explain how gold, platinum and uranium are created.
Sep 1st, 2017
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