Saturday, December 4, 2021

This tiny iron-rich world is extraordinarily metal

During the day, the exoplanet GJ 367b (shown here in an artist's rendering) is so hot, the iron it holds could almost begin to melt. Credit: SPP 1992 (Patricia Klein)

Astronomers have spotted the tiniest, most metal-based planet yet — an iron-rich world that is light years away from Earth and zips around its star once every eight hours.

Date: 2021-12-02
Twitter: @nature
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Book review of The Power of Geography: Ten Maps That Reveal the Future of Our World by Tim

Marshall's method is to provide potted histories showing how wars and political decisions were influenced by physical territory.

At times, the approach can be refreshing and very useful.

At times, however, Marshall's fixation on territory leads him into some odd revisionism.

And sometimes the arguments are contradictory. Marshall writes that "there is always geography to limit how far Turkey travels" — just after recounting the history of an empire that lasted more than five centuries, at times controlling wide swaths of three continents.

Publisher: Washington Post
Date: 2021-12-02T20:27:15.000Z
Twitter: @WashingtonPost
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Octavia Spencer Dishes on Her 'Yellowstone' Obsession (Exclusive) | wusa9.com

Octavia Spencer is a hardcore superfan. The celebrated actress isn't shy about expressing her love for the outdoorsy drama Yellowstone .

Spencer spoke with ET's Matt Cohen on Tuesday, at the Los Angeles premiere of her new sci-fi drama Encounter, and was asked about her outspoken appreciation for the Kevin Costner -led series.

Publisher: wusa9.com
Date: 1:34 AM EST December 3 2021
Twitter: @WUSA9
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NASA wants to put a nuclear power plant on the moon by 2030 — and you can help | Space

Do you or a friend know how to build a uranium-powered nuclear reactor that can fit inside a 12-foot-long by 18-foot-wide (4 by 6 meters) rocket? Can you get the job done by the end of the decade? If so, then NASA and the U.S. Department of Energy would like to hear from you!

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Publisher: Space.com
Date: 2021-11-30T18:07:02Z
Author: Brandon Specktor
Twitter: @SPACEdotcom
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Texas Astronomers Discover Strangely Massive Black Hole in Milky Way Satellite Galaxy - UT News

FORT DAVIS, Texas — Astronomers at The University of Texas at Austin's McDonald Observatory have discovered an unusually massive black hole at the heart of one of the Milky Way's dwarf satellite galaxies, called Leo I.

The team decided to study Leo I because of its peculiarity. Unlike most dwarf galaxies orbiting the Milky Way, Leo I does not contain much dark matter.

Publisher: UT News
Date: 2021-12-01T16:20:42 00:00
Twitter: @UTAustinNews
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Listen: The power of our sense of smell, Why government scientists really do look for aliens |
Publisher: Wisconsin Public Radio
Author: Uncredited
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Nissan unveils lunar rover prototype developed with JAXA | The Japan Times

Nissan Motor Co. unveiled Thursday a prototype of a lunar rover co-developed with Japan’s space exploration agency that will employ the automaker’s motor control technology to maneuver across the Moon’s loose terrain.

The automaker said it aims to make the rover capable of traversing the undulating Moon surface smoothly by applying technology developed for use in its roadbound electric vehicles such as the Leaf and Ariya.

Publisher: The Japan Times
Date: 2021-12-02T15:21:18 09:00
Twitter: @japantimes
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Three-body interactions bring egoists into th | EurekAlert!

image: Example of collective self-optimisation (a): Pattern for social temperature regulation among Emperor penguins, which act as sources of heat (red) and at the same time move toward their ideal temperature (green arrow).

A research team from Heinrich Heine University Düsseldorf (HHU) has worked together with TU Darmstadt and an MPI based in Garching to examine the group dynamics of communicating active particles. These particles are consistently focused on self-optimisation.

Publisher: EurekAlert!
Twitter: @EurekAlert
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The 2021 Just Security Holiday Reading List

Continuing the Just Security tradition of holiday reading lists , we asked our wonderful team of editors for end-of-year reading recommendations. We hope this list may enrich your personal reading or inspire your gift purchasing for others — or both!

In the meantime, we'd like to wish all our readers a wonderful holiday season and a very happy New Year. We hope that you enjoy these reading recommendations from the Just Security team.

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Publisher: Just Security
Date: 2021-12-03T13:55:12 00:00
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