Daily News update on – Science


November 30, 2021

NEWS

Space.com

Russian anti-satellite test has made spacewalks riskier for astronauts

Space is more dangerous than ever after Russia’s recent anti-satellite (ASAT) test. On Tuesday (Nov. 30), two NASA astronauts were scheduled to conduct a spacewalk and replace a faulty, 21-year-old antenna system. However, a space debris warning was …

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Space.com

International Space Station shines in gorgeous fly-around photos by Crew Dragon astronauts

Endeavour didn’t head directly home to Earth, however; it first performed a complete, 360-degree fly-around of the ISS, a maneuver not performed by a crewed spacecraft since NASA’s space shuttle fleet retired in 2011.

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CNN

NASA astronauts prepare for spacewalk just weeks after Russian satellite strike created debris field

(CNN) Two newly arrived NASA astronauts will head outside of the International Space Station on Tuesday for a spacewalk to replace a malfunctioning communications antenna. Dr. Thomas Marshburn and Kayla Barron are scheduled to begin their spacewalk at …

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Space.com

This pair of merging black holes is the closest to Earth we’ve ever found

Close-up view of the two bright galactic nuclei, each housing a supermassive black hole, in NGC 7727, a galaxy located 89 million light-years away from Earth in the constellation Aquarius. (Image credit: ESO/Voggel et al.).

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EarthSky

Nearby habitable planets at Alpha Centauri?

This is a simulated view of the Alpha Centauri system, as seen through the diffracted pupil lens of TOLIMAN. The new space telescope will search for nearby habitable planets in the nearest star system to our sun. Image via Peter Tuthill/ University of …

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CNN

Rain fell at Greenland’s summit this year for the first time. It’s going to happen more often, study says

The Arctic is expected to experience more rain than snow some time between 2060 and 2070, marking a major transition in its precipitation patterns as the climate crisis jacks up temperatures in the region, according to the study published on Tuesday in the …

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Space.com

NASA’s James Webb Space Telescope on track for Dec. 22 launch

The $9.8 billion Webb has experienced years of technical delays, funding issues and a pandemic. And it suffered another delay, albeit a slight one, earlier this month during its final preparations for launch.

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Space.com

NASA wants to put a nuclear power plant on the moon by 2030 — and you can help

The proposed reactor must be a uranium-powered fission reactor — that is, an apparatus that can split heavy atomic nuclei into lighter nuclei, releasing energy as a byproduct. (Nuclear fusion, on the other hand, involves combining two or more lighter atoms …

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Phys.Org

Are water plumes spraying from Europa? NASA’s Europa Clipper is on the case

This triptych image shows views of Jupiter’s moon Europa as taken by various NASA spacecraft, including Voyager 1, Voyager 2 and Galileo. Credit: NASA/JPL-Caltech. Finding plumes at Europa is an exciting prospect, but scientists warn it’ll be tricky, …

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Space.com

Giant comet was active way farther from the sun than expected, scientists confirm

One of the largest comets ever discovered was active long before scientists had expected, according to NASA’s industrious planet-hunting telescope. Comets are made up of dust and ice left over from the early days of the solar system.

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