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Rare ‘Boomerang’ Earthquake Tracked by Scientists in the Ocean for the First Time – SciTechDaily

Scientists observed a ‘boomerang’ earthquake along Atlantic Ocean fault line, providing clues about how they could cause devastation on land. Earthquakes occur when rocks suddenly break on a fault – a boundary between two blocks or plates. During large earthq…

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Reconstructed image of the fracture zone. Credit: Hicks et al.
Scientists observed a ‘boomerang’ earthquake along Atlantic Ocean fault line, providing clues about how they could cause devastation on land.
Earthquakes occur when rocks suddenly break on a fault – a boundary between two blocks or plates. During large earthquakes, the breaking of rock can spread down the fault line. Now, an international team of researchers have recorded a ‘boomerang’ earthquake, where the rupture initially spread…

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Studies Show Far-UVC Light Can Kill Coronaviruses Without Harming Humans – Gizmodo

Ultraviolet light can kill microscopic creatures like bacteria and viruses by destroying the molecular bonds in their genetic material. But UV light also damages human DNA, causing eye and skin damage and increasing our risk of cancer. It turns out, though, t…

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Ultraviolet light can kill microscopic creatures like bacteria and viruses by destroying the molecular bonds in their genetic material. But UV light also damages human DNA, causing eye and skin damage and increasing our risk of cancer. It turns out, though, that theres a loophole: a specific wavelength of UV light thats safe for people but capable of killing coronaviruses, both on surfaces and in the air.
Since the start of the pandemic, youve probably spent a lot of time on sites like Amazon, …

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Arctic sea-ice shrinks to near record low extent – BBC News

Only in 2012 have satellites seen the summer floes in the polar north more withdrawn than in 2020.

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Image copyrightMOSAIC/AWI/Steffen Graupner
This summer’s Arctic sea-ice shrank to its second lowest ever extent in the era of satellite observation.
The floes withdrew to just under 3.74 million sq km (1.44 million sq miles) last week, preliminary data indicates.
The only time this minimum has been beaten in the 42-year spacecraft record was 2012 when the pack ice was reduced to 3.41 million sq km.
Shorter autumn days and encroaching cold mean the floes are now starting to regrow.
It’s norm…

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NASA IRIS Reports the First Ever Clear Images of Nanojets on the Sun – SciTechDaily

NASA’s IRIS Spots Nanojets: Shining Light On Heating the Solar Corona In a paper published today (September 21, 2020) in Nature Astronomy, researchers report the first ever clear images of nanojets — bright thin lights that travel perpendicular to the magneti…

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These images showing nanojets on the Sun were captured by NASA’s IRIS mission on Apr. 3, 2014. Credit: NASA’s Goddard Space Flight Center
NASA’s IRIS Spots Nanojets: Shining Light On Heating the Solar Corona
In a paper published today (September 21, 2020) in Nature Astronomy, researchers report the first ever clear images of nanojets — bright thin lights that travel perpendicular to the magnetic structures in the solar atmosphere, called the corona — in a process that reveals the existence of …

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