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The hailstone is so massive it even stunned meteorologists. “It’s incredible,” said meteorologist Matthew Kumjian from Penn State University in the US. “This is the extreme upper end of what you’d expect from hail.” The hefty ice lump smashed down from a supercell thunderstorm in Argentina two years ago, in the heavily populated town Villa Carlos
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A single tail from one of the largest and most enigmatic dinosaur species looks to have solved a longstanding mystery about these extinct creatures: whether they could swim. The discovery of a giant fossilised tail belonging to the theropod Spinosaurus aegyptiacus suggests these huge predators were aquatic animals after all, using tail-propelled locomotion to swim
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Scientists have found evidence that a fundamental physical constant used to measure electromagnetism between charged particles can in fact be rather inconstant, according to measurements taken from a quasar some 13 billion light-years away. Electromagnetism is one of the four fundamental forces that knit everything in our Universe together, alongside gravity, weak nuclear force, and
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An international team of scientists have discovered an exciting, Earth-sized exoplanet that’s capable of supporting liquid water. “This intriguing, distant world gives us even greater hope that a second Earth lies among the stars, waiting to be found,” Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate in Washington, who was not part of the
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It’s been a busy week for astrophysicist Michel Mayor. On Tuesday, he won a Nobel Prize for his work detecting exoplanets. Then, on Wednesday, he crushed the dreams of anyone hoping to one day colonize those planets. “If we are talking about exoplanets,” Mayor told Agence France-Presse when asked about off-world colonization, “things should be clear: we will not migrate there.”