Daily News update on – Science


April 21, 2021

NEWS

Space.com

NASA astronauts Shane Kimbrough and Megan McArthur, along with European Space Agency (ESA) astronaut Thomas Pesquet and Japan Aerospace Exploration Agency (JAXA) astronaut Akihiko Hoshide, make up the quartet of astronauts that will join the …

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Spaceflight Now

Liftoff of the Crew Dragon Endeavour spacecraft on top of a SpaceX Falcon 9 rocket is set for 6:11:35 a.m. EDT (1011:35 GMT) Thursday from pad 39A at NASA’s Kennedy Space Center.

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Space.com

Col. Michael Hopkins is a NASA astronaut and U.S. Air Force colonel. He served as commander on the Crew-1 SpaceX Crew Dragon, which launched on November 15, 2020. The mission represented the first commercial crewed spacecraft to travel to the …

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Spaceflight Now

Steve Jurczyk, NASA’s acting administrator, said Tuesday that the draft version of an “implementing agreement” between NASA and Roscosmos is still being reviewed by the U.S. State Department. “We’re waiting for …

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Space.com

The 4-lb. (1.8 kilograms) chopper, known as Ingenuity, aced a 39-second hover above the floor of Mars’ Jezero Crater on Monday morning (April 19), becoming the first aircraft ever to perform a powered, controlled flight on a world beyond Earth.

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Space.com

Under this new strategy, the agency will be “shifting acquisition of the exploration extravehicular activity (xEVA) system to a model in which NASA will purchase spacesuit services from commercial partners rather than building them in-house with traditional …

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Space.com

CAPE CANAVERAL, Fla. — SpaceX and NASA have delayed the next launch of four astronauts to the International Space Station by 24 hours due to unfavorable weather conditions along the flight path. A SpaceX Crew Dragon capsule and Falcon 9 rocket …

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Space.com

One of springtime’s most prominent “shooting star” groups peaks overnight tonight (April 21-22). The famous Lyrid meteor shower will become visible in the Northern Hemisphere beginning at about 10:30 p.m. local time and continuing overnight, weather …

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CNN

(CNN) Fifty years ago, NASA’s Apollo 14 completed the third crewed mission to the moon. On board the spacecraft as it landed in the Pacific Ocean on February 9, 1971, was some unusual cargo — about 500 tree seeds. The seeds — loblolly pine, sycamore, …

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Phys.Org

Excitons are technically not particles, but quasiparticles (quasi- meaning “almost” in Latin). They are formed by the electrostatic attraction between excited, negatively charged electrons, and positively charged holes. Holes are spaces left behind by the excited …

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