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Astronaut requirements changing rapidly with private spaceflyers, long-duration missions – Space.com

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NASA’s 2017 Class of Astronauts participate in graduation ceremonies at the Johnson Space Center in Houston, Texas, on Jan. 10, 2020. This is the first class to graduate under the Artemis program, and the 13 astronauts are now eligible for assignments to the International Space Station, Artemis missions to the moon, and ultimately, missions to Mars. (Image credit: NASA)
Being an astronaut of the 2020s will be completely different than it was for any astronaut that came before, a panel of spacef…

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Big Ben-sized asteroid to fly past Earth this week – Fox News

An asteroid the size of London’s famous Big Ben clock tower is set to whiz past Earth this week.

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An asteroid the size of London’s famous Big Ben clock tower is set to whiz past Earth this week.
The space rock, known as 2020 TGI, will fly safely past Earth on Thursday, Oct. 22, at 10:49 p.m. EST, according to NASA’s Center for Near-Earth Object Studies.
Researchers estimate 2020 TGI is traveling at a speed of roughly 30,700 miles per hour and will fly past the planet at a distance of just over 7 million miles.
ASTEROID TO FLY PAST EARTH JUST BEFORE ELECTION DAY, NASA SAYS
Its most recent…

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Metallodrugs: Novel Antiviral Strategy for Treatment of COVID-19 – SciTechDaily

HKU scientists and microbiologists jointly discover a novel antiviral strategy for treatment of COVID-19 using existing metallodrugs. A research team led by Pro…

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Proposed structure of Bi-bound zinc-binding domain of SARS-CoV-2 helicase. Through kicking out the crucial zinc(II) ions in the zinc-binding domain of SARS-CoV-2 helicase, RBC demonstrated its ability to potently suppress the replication of SARS-CoV-2. Credit: The University of Hong Kong
HKU scientists and microbiologists jointly discover a novel antiviral strategy for treatment of COVID-19 using existing metallodrugs.
A research team led by Professor Hongzhe SUN, Norman & Cecilia Yip Prof…

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NASA’s OSIRIS-REx Is About to Touch an Asteroid – WIRED

After years of studying Bennu, the spacecraft will make its first attempt at a sample collection on Tuesday.

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Once Bennu has its sample, it will return to an orbit around the asteroid so it can tag along while the rock makes its annual journey around the sun. Bennu is the smallest object ever orbited by a spacecraft, and keeping a stable orbit around something so small comes with all sorts of challenges that arent involved in orbiting a planet. It only takes a tiny amount of energy to achieve escape velocitya human standing on the surface of Bennu could jump off of it which means that OSIRIS-REx has to …

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NASA’s OSIRIS-REx Is About to Touch an Asteroid – WIRED
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