Saturday, July 10, 2021

Repurposed communications satellites could help save humanity from an asteroid impact | Space

Large satellites used for TV broadcasting could be quickly and easily repurposed as asteroid deflectors if a space rock were to threaten Earth, according to a study by the European aerospace company Airbus.

The study, part of a mission concept called Fast Kinetic Deflection (FastKD), was commissioned by the European Space Agency (ESA), as part of its effort to prepare for an apocalyptic scenario that will certainly happen one day (even though that day might be in a very distant future).

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Publisher: Space.com
Date: 2021-07-08T17:33:18 00:00
Author: https www facebook com spacecom
Twitter: @SPACEdotcom
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This week in space: How to deflect an asteroid with a SpaceX rocket

This Week In Space  brings you what’s new and exciting in space exploration and astronomy once a week, every week. From supernovae to SpaceX or Mars missions to black holes, if it’s out of this world, it’s covered here.

Spaceships like the ones used by SpaceX could be used to pull asteroids away from a collision with Earth, scientists say.

Publisher: Chron
Date: 2021-07-06 19:47:25
Author: Asa Stahl
Twitter: @chron
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NASA conducts analysis of asteroid Ryugu sample brought by JAXA's Hayabusa2- Technology News,

The first sample of asteroid Ryugu has recently arrived at the Johnson Space Center, National Aeronautics and Space Administration (NASA). The sample is the first one to which has been sent to NASA for further investigation, according to a NASA blog .

The scientists analysing asteroid Ryugu include Mike Zolensky who is the deputy leader of the mineralogy-petrology subteam for the preliminary analysis effort. He has analysed the sample to determine its basic nature.

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Publisher: Tech2
Date: 2021-07-09 16:18:53 05:30
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Deadwood receives ... honor with naming of asteroid - KNBN NewsCenter1

DEADWOOD, S.D. — Deadwood-native and Badlands Observatory Director Ronald Dyvig has decided to name Asteroid-123794, which he discovered back in January 2001, for his hometown.

Asteroid-123794 – now known as “Deadwood” – is approximately one- to two-miles in diameter and orbits between Mars and Jupiter.

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Publisher: KNBN NewsCenter1
Date: 2021-07-08T14:38:06 00:00
Twitter: @NewsCenter1
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Number of City-Sized Asteroids That Smashed Into Ancient Earth Underestimated: Study

Scientists may have significantly underestimated how often the early Earth was struck by asteroids, new research suggests.

After studying small particles that are thought to have resulted from ancient impacts, researchers think it is possible that the number of these impacts may be up to 10 times higher than previously thought.

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Publisher: Newsweek
Date: 2021-07-09T12:10:30-04:00
Twitter: @newsweek
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Dinosaurs would have probably gone extinct even without asteroid

What would have happened if the infamous Chicxulub asteroid had just whizzed by Earth? Would you now be able to Instagram a Brontonsaurus sighting or a T. Rex storming the Empire State Building? The answer is: probably not.

There is no question that the asteroid was the final doom of the dinosaurs 66 million years ago.

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Publisher: SYFY WIRE
Date: 2021-07-07T21:15:00-04:00
Author: Elizabeth Rayne
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Asteroid named in honour of Ghillar Michael Anderson for the Aboriginal elder's contribution

"My nan and pop were always talking about the stars and they'd tell you all the different stories," he said.

As well as having a keen interest in space, he was heavily involved in the rights of Aboriginal people, including being one of the founders of the Aboriginal Tent Embassy in 1972.

Date: 2021-07-05T22:30:35 00:00
Author: https www abc net au news gary jon lysaght 9207512
Twitter: @abcnews
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Ryugu's First Sample Arrived, NASA Conducts Examination of Asteroid | Science Times

Asteroid Ryugu's first sample had recently arrived at NASA's Johnson Space Center. Last December, the Japan Aerospace Exploration Agency JAXA had the samples gathered from the asteroid through their spacecraft Hayabusa2.

Mike Zolensky, mineralogy-petrology subteam's deputy leader, conducted the initial investigation of the samples from asteroid Ryugu.

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Publisher: Science Times
Date: 2021-07-06T00:41:00-04:00
Author: Ron Jefferson
Twitter: @ScienceTimesCom
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Minimum perihelion distances and associated dwell times for near-Earth asteroids | Monthly

Athanasia Toliou, Mikael Granvik, Georgios Tsirvoulis, Minimum perihelion distances and associated dwell times for near-Earth asteroids, Monthly Notices of the Royal Astronomical Society , 2021;, stab1934, https://doi.org/10.1093/mnras/stab1934

The observed near-Earth asteroid population contains very few objects with small perihelion distances, say, q ≲ 0.2 au. NEAs that currently have orbits with larger q might be hiding a past evolution during which they have approached closer to the Sun.

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Publisher: OUP Academic
Date: 2021-07-08
Author: Toliou Athanasia
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