2026年9月24日星期四
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This week’s new questions

If every ship on the planet were hauled out of the water, how much would global sea levels change, and how quickly? How different would Earth be if anaerobic l…

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Indonesia’s Anak Krakatau

Anak Krakatau erupts ash and volcanic gases in this Sept. 5, 2026, image acquired with the OLI (Operational Land Imager) on Landsat 8. Eruptions are a regular…

AghamAmerika

NASA’s Integrated Medical Model (IMM)

Planning crewed missions to the Moon and Mars involves preparing for the medical realities of long-duration space travel. Factors like cosmic radiation, microg…

AghamAmerika

Building the materials foundation for AI

The AI boom is becoming a materials challenge. As AI pushes computing into new territory, the materials behind that infrastructure are becoming just as crucial…

AghamAmerika

Venus may have swallowed its own moon

Venus may have once had a moon, but new research suggests the planet’s incredibly slow rotation could have doomed it. Computer simulations showed that instead…

AghamEuropa

Purple swirls on the Red Planet

This image shows a prominent ice cliff near Mars’s south pole. With striking swirls of purple, pink and red, it’s a far cry from the colour palette we usually…

AghamAmerika

APOD: 2026 September 16 – Webb’s View of M64

APODScienceAPODAPOD: 2026 September 16 –…Today’s APODArchiveSubmissionsIndexSearchCalendarRSSEducationAboutDiscuss APOD Astronomy Picture of the Day Discover t…

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NASA Ames Stars of the Month: September 2026

The NASA Ames Science Directorate recognizes the outstanding contributions of (pictured left to right) Steve Ormsby, Aphrodite Kostakis, Alejando Borlaff, Sara…

AghamAmerika

What even is an AI kill switch?

<p>Amid renewed calls to slow frontier AI, experts are considering what an emergency stop would entail&mdash;and who would decide when to use it</p>

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How pizza can solve this unusual math puzzle

<p>Moser&rsquo;s circle problem can be used to divide a pizza into one, two, four, eight, 16 or 31 slices. It&rsquo;s a perfect example of how the numbers in a…

AghamAmerika

Roundtables: Could AI really kill us all?

Listen to the session or watch below Employees at the world&#8217;s leading AI labs are saying there&#8217;s a real possibility that advanced AI could destroy…

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The U.S. has weapons in space

<p>A high-ranking official announced yesterday that the U.S. military has deployed weapons into orbit to counter threats from Russia and China</p>

AghamEuropa

Webb reveals stunning panorama of star formation

This starry view of the nearby star-forming region IC 348 is one of the largest images from the NASA/ESA/CSA James Webb Space Telescope released to the public…

AghamAmerika

What if we never find dark matter?

<p>Could the hunt for the universe&rsquo;s missing matter be the biggest wild goose chase in scientific history?</p>

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In This Issue

Proceedings of the National Academy of Sciences, Volume 123, Issue 37, September 2026. <br/>

AghamEuropa

FLEX and Sentinel-3C launch highlights

Video: 00:03:22 ESA’s state-of-the-art FLEX Earth Explorer satellite and the Copernicus Sentinel-3C satellite have been launched together aboard a Vega-C rocke…

AghamEuropa

FLEX and Sentinel-3C launched

The European Space Agency’s FLEX Earth Explorer satellite and the Copernicus Sentinel-3C satellite have been launched together aboard a Vega-C rocket from Euro…

AghamAmerika

Donated livers can be made biologically younger

Once an organ is removed from a donor’s body, the clock starts ticking. Surgeons usually flush the organ with a preservative solution, bag it, and put it on ic…

AghamAmerika

Is there a hidden 'Planet 9' in our solar system?

For more than a century, astronomers have been captivated by the idea that an undiscovered planet could be lurking in the furthest reaches of our solar system.

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Physicists can’t agree on how the Universe works

A massive worldwide survey of physicists has revealed surprisingly little agreement about some of the universe’s biggest mysteries. No majority backed the stan…

AghamAmerika

To sleep and dream: Unraveling narcolepsy

Proceedings of the National Academy of Sciences, Volume 123, Issue 37, September 2026. <br/>In an extraordinary convergence, Emmanuel Mignot and Masashi Yanagi…

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On our bookshelf

On our bookshelf

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How the brain dances across critical boundaries

<p>by Audrey J. Sederberg</p> The brain’s functional connectivity dynamics have been explained by a critically tuned model, but such models miss occasional rec…

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The 100 Diatom Genomes Project

<p>by Thomas Mock, Gust Bilcke, Eliott Flaum, Shunan Fu, Lilian Hoch, Kevin Moog, Nadine Rijsdijk, Elizabeth C. Ruck, Ian W. Bishop, Carole Duchene, Reuben Gil…