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Physicists use classical concepts to decipher strange quantum behaviors in an ultracold gas

Credit: Public Domain CC0 There they are, in all their weird quantum glory: ultra-cold lithium atoms in the optical trap run by UC Santa Barbara undergraduate student Alec Cao and his colleagues from David Weld’s atomic physics group. Held by lasers in a regular lattice formation and “driven” by pulses of energy, these atoms were doing crazy things. “It was …

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A scan of 10.3 million stars reveals no signs of aliens – yet

The Murchison Widefield Array (MWA), a low-frequency radio telescope in Western Australia, is visible in this undated aerial view released on 8 September 2020. International Center for Radio Astronomy Research (ICRAR) / Curtin University / Handout via REUTERS WASHINGTON (Reuters) – Scientists have completed the largest search to date for extraterrestrial civilizations by scanning about 10.3 million stars using a …

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The San Francisco sky is orange due to smoke from the fires

On Wednesday the sky over San Francisco was remarkably dark and orange. Scientists say the color comes from smoke particles from fires across the state. San Francisco residents have turned to social media to share the sky, likening it to science fiction films like “Blade Runner.” Visit the Business Insider home page for more stories. As California experiences one of …

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Life on Earth probably began in meteorite craters

Hard Reset A new study is turning the script around the effects of massive meteorite impacts. While an ancient impact is commonly due to the extinction event that killed the dinosaurs, scientists are now starting to suspect that an earlier impact may have triggered life on Earth in the first place. Scientists have long suggested that meteorites brought the ingredients …

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Why does the asteroid Bennu eject particles into space?

The asteroid, which is being studied by NASA’s OSIRIS-REx, exhibits surprising activity on its surface and scientists are beginning to understand what could be causing it. When NASA’s OSIRIS-REx the probe arrived at the asteroid (101955) Bennu, the mission scientists knew their spaceship was orbiting something special. Not only was the boulder strewn with boulders asteroid shaped like a rough …

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“A new dark force?” | The Daily Galaxy

Everything we know about the universe and all the laws of physics apply to four percent of the universe. The other 96 percent are the unknown phenomena of dark matter and dark energy. “If we take into account all the matter and energy that we know,” says Neil deGrasse Tyson, “and measure how much gravity it should have, it’s one …

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Add the RNA produced by the human genome to the list of cell surface molecules

(Left) A hypothetical model of the relative positions of FISH probes (red arrowheads) on a membrane-bound RNA fragment. (Right) In situ hybridization image of a single fluorescent RNA molecule of maxRNA (yellow arrows). Credit: Zhong Lab UC San Diego bioengineers demonstrated that RNA produced by the human genome is present on the surface of human cells, suggesting a more extensive …

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