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Globular Star Clusters May Foster Repeated Merging of Multiple Black Holes

Stellar-mass black holes that reside in globular clusters — small regions of space, usually at the edges of a galaxy, that are packed with hundreds of thousands to millions of stars — could combine repeatedly to form objects bigger than ...

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Geophysicists Discover Two Salty Subglacial Lakes in Canadian Arctic

An international team of geophysicists has discovered two hypersaline lakes beneath the Devon Ice Cap, one of the largest ice caps in the Canadian Arctic. While there are more than 400 known subglacial lakes in the world, concentrated primarily in ...

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‘Junk’ DNA Plays Crucial Role in Holding Genome Together: Study

A new study published online in the journal eLife indicates that satellite DNA — commonly called ‘junk’ DNA — performs the vital function of ensuring that chromosomes bundle correctly inside the cell’s nucleus, which is necessary for cell survival; and ...

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ESO’s SPHERE Instrument Sees Weird and Wonderful Dusty Disks around Young Stars

A series of images from the Spectro-Polarimetric High-contrast Exoplanet Research (SPHERE) instrument on ESO’s Very Large Telescope in Chile shows dusty disks of various shapes around nearby young stars. The SPHERE instrument allows astronomers to suppress the brilliant light of stars ...

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90,000-Year-Old Finger Bone Found in Saudi Arabia Could Rewrite Human Migration History

An international team of researchers has discovered a fossilized human finger bone in the Nefud Desert of Saudi Arabia estimated to be about 90,000 years old. The discovery is described in the journal Nature Ecology and Evolution. The small (just ...

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Giant Triassic Ichthyosaur is One of Biggest Animals Ever

According to a study released this week in the journal PLoS ONE, an isolated bone from the lower jaw of a prehistoric marine reptile found in Somerset, UK, belongs to one of the largest animals ever. Fossil collector Paul de ...

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Thunderclap Headaches: Rare Case Caused by ‘Carolina Reaper’ Chili Pepper

Taking part in a hot chili pepper eating contest might have some unexpected consequences, according to a team of doctors from Bassett Medical Center and the Henry Ford Health System. The team’s warning comes after a 34-year-old man with no ...

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Radio Astronomers Check Interstellar Asteroid Oumuamua for FM Band Signals

A highly-elongated metallic or rocky object — known as 1I/2017 U1 ‘Oumuamua — came from another star system, prompting speculation it could be an interstellar spacecraft. So an international team of astronomers went back through observations from the Murchison Widefield ...

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Gigantic Solar ‘Tornadoes’ Don’t Rotate After All

A new study indicates that solar tornadoes may have been misnamed because scientists have so far only been able to observe them using 2D images. Solar tornadoes — gigantic structures several times the size of the Earth — have been ...

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Mobile Eyebrows Played Important Role in Human Survival, Research Suggests

New research published in the journal Nature Ecology & Evolution contributes to a long-running debate about why archaic hominins had gigantic brow ridges while anatomically modern humans evolved flatter foreheads. Like the antlers on a stag, a pronounced brow ridge ...

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