Scientific American - Space and Physics

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Science news and technology updates from Scientific American
Updated: 41 min 40 sec ago

Fast Radio Bursts Flash throughout the Cosmos

4 hours 37 min ago
The mysterious and powerful cosmic outbursts could occur as often as once per second in the observable universe

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Categories: Astronomy Headlines

How Does Geometry Explain the Phases of the Moon?

7 hours 7 min ago
What causes the Moon to change phases throughout the month? Why is it sometimes visible only during the day and other times only at night? What’s the relationship between these times and the...

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Categories: Astronomy Headlines

Building a Better Mirror for Telescopes

Fri, 09/22/2017 - 13:52
More reflective telescope mirrors allow astronomers to capture more photons—and do more science. Christopher Intagliata reports.

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Categories: Astronomy Headlines

High-Energy Cosmic Rays Come from Outside Our Galaxy

Fri, 09/22/2017 - 10:00
Giant observatory announces long-awaited result

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Arecibo Observatory Closed by Hurricane Maria

Fri, 09/22/2017 - 08:15
The condition of the world’s second-largest radio telescope remains unclear after being battered by the storm

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Categories: Astronomy Headlines

Didn't Scientists Already Know Where Cosmic Rays Come From?

Fri, 09/22/2017 - 04:30
Some kinds, yes, but astronomers now good evidence that the most powerful and mysterious ones come from far beyond the Milky Way

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Categories: Astronomy Headlines

Galaxies Far, Far Away Send Us Highest-Energy Cosmic Rays

Thu, 09/21/2017 - 11:00
A new study hints that the most energetic particles ever seen come from far beyond the Milky Way.  

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Categories: Astronomy Headlines

En Route to Asteroid, NASA's OSIRIS-REx Mission Will Fly by Earth

Thu, 09/21/2017 - 10:00
The encounter will give the spacecraft a boost on its deep-space trip to fetch samples from Asteroid Bennu

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Categories: Astronomy Headlines

Binary Giant Black Holes Spotted at Galaxy's Core

Thu, 09/21/2017 - 09:00
The objects are separated by less than one light year—the most compact pairing of supermassive black holes ever seen

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Categories: Astronomy Headlines

Prepping for Alien Oceans, NASA Goes Deep

Thu, 09/21/2017 - 06:15
Deep-sea observatory tests technologies for eventual exploration of Europa or other icy moons

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The Neutrino Puzzle

Tue, 09/19/2017 - 06:15
The largest experiment ever to probe these mysterious particles could point the way to new physics

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Categories: Astronomy Headlines

After Cassini's End at Saturn, Outer Planets Exploration Shifts to Jupiter

Tue, 09/19/2017 - 04:30
NASA and the European Space Agency may soon launch new missions to the solar system’s largest planet

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Astronomers Discover Pitch-Black Exoplanet

Mon, 09/18/2017 - 12:00
The hellish world WASP-12b is darker than fresh asphalt in visible light, but glows red-hot in infrared

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Categories: Astronomy Headlines

Cassini's End Marks New Beginning for Exploration of Saturn

Mon, 09/18/2017 - 11:30
NASA is now considering multiple proposals for a return to the ringed planet

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How to Predict a Hostile Alien Invasion

Sun, 09/17/2017 - 09:00
It's hardly the most pressing concern for Earth, but there might be a way to forewarn ourselves

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Categories: Astronomy Headlines

Cassini's Grand Finale

Thu, 09/14/2017 - 12:30
The Cassini spacecraft has spent the last two decades exploring Saturn and its unique moons, making discoveries that will advance space exploration for years to come. Scientific American editors Lee...

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Categories: Astronomy Headlines

New SpaceX Video Shows How Not to Land a Rocket

Thu, 09/14/2017 - 12:00
Watch the epic—and explosive—blooper reel for the Falcon 9 booster’s arduous path to reusability

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Giant Asteroid Vesta May Have Buried Ice

Thu, 09/14/2017 - 10:15
A new study using data from NASA’s Dawn mission suggests ice may exist beneath smooth patches of the asteroid’s surface

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Mysterious Universe

Thu, 09/14/2017 - 06:00


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Cassini's "Grand Finale" Will Be a Blaze of Glory

Thu, 09/14/2017 - 03:45
The Cassini orbiter will burn out, but its legacy won’t fade away

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Categories: Astronomy Headlines

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