Science & Technology News

NASA's SDO Reveals How Magnetic Cage on the Sun Stopped Solar Eruption

Science Daily Astronomy - Fri, 2018-02-23 13:19
A dramatic magnetic power struggle at the Sun's surface lies at the heart of solar eruptions, new research shows.

Model based on hydrothermal sources evaluate possibility of life on Jupiter's icy moon

Science Daily Astronomy - Fri, 2018-02-23 12:23
Scientists compare primitive Earth scenario with satellite Europa's conditions; the Jupiterian moon could host microorganisms at the bottom of a huge warm ocean located underneath its frozen crust.

On second thought, the Moon's water may be widespread and immobile

Science Daily Astronomy - Fri, 2018-02-23 12:23
A new analysis of data from two lunar missions finds evidence that the Moon's water is widely distributed across the surface and is not confined to a particular region or type of terrain.

Ancient Cave Paintings Clinch Case for Neandertal Symbolism

Scientifc America - Fri, 2018-02-23 05:16
Abstract images in Spanish caves date back 65,000 years—millennia before Homo sapiens set foot in Europe—settling a long-running debate over Neandertal cognition

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Could More Snow in Antarctica Slow Sea Level Rise?

Scientifc America - Fri, 2018-02-23 01:45
New claims that increased snowfall in eastern regions could offset melting in the western side of the continent might not stand the test of time

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Improved Hubble yardstick gives fresh evidence for new physics in the universe

Science Daily Astronomy - Thu, 2018-02-22 16:20
Astronomers have used NASA's Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated nearly a century ago. Intriguingly, the results are forcing astronomers to consider that they may be seeing evidence of something unexpected at work in the universe.

Astronomers discover S0-2 star is single and ready for big Einstein test

Science Daily Astronomy - Thu, 2018-02-22 10:36
A team of astronomers has found that S0-2 does not have a significant other after all, or at least one that is massive enough to get in the way of critical measurements that astronomers need to test Einstein's Theory of General Relativity. Up until now, it was thought that S0-2 may be a binary, a system where two stars circle around each other.

Talking with--Not Just to--Kids Powers How They Learn Language

Scientifc America - Thu, 2018-02-22 01:45
Back-and-forth exchanges build the brain’s language center and verbal ability

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Amateur astronomer captures rare first light from massive exploding star

Science Daily Astronomy - Wed, 2018-02-21 13:18
First light from a supernova is hard to capture; no one can predict where and when a star will explode. An amateur astronomer has now captured on film this first light, emitted when the exploding core hits the star's outer layers: shock breakout. Subsequent observations by astronomers using the Lick and Keck observatories helped identify it as a Type IIb supernova that slimmed down from 20 to 5 solar masses before exploding.

Magnetic field traces gas and dust swirling around supermassive black hole

Science Daily Astronomy - Wed, 2018-02-21 12:29
Astronomers reveal a new high resolution map of the magnetic field lines in gas and dust swirling around the supermassive black hole at the center of our Galaxy. The team created the map, which is the first of its kind, using the CanariCam infrared camera attached to the Gran Telescopio Canarias sited on the island of La Palma.

Some black holes erase your past

Science Daily Astronomy - Wed, 2018-02-21 09:13
Physicists insist on determinism: your past and present determine your future uniquely, per Einstein's equations of general relativity. They call this strong cosmic censorship. A mathematician found some types of black holes -- charged, non-rotating objects in an expanding universe -- that allow an observer inside the black hole to travel across a horizon into a place where the past is obliterated and there are an infinite number of possible futures for every initial state.

A Star Is Shorn: The Fine Art of Spotting Supernovae Is Ideal for Amateurs

Scientifc America - Wed, 2018-02-21 08:30
With a simple telescope and camera, a backyard skywatcher has helped professional astronomers witness the never-before-seen beginnings of a star’s explosive death

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Programming a DNA Clock

Scientifc America - Wed, 2018-02-21 01:45
Engineers have created a DNA-based chemical oscillator, opening the door to molecular computing

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NASA's James Webb Space Telescope to reveal secrets of the Red Planet

Science Daily Astronomy - Tue, 2018-02-20 12:47
Mars rovers and orbiters have found signs that Mars once hosted liquid water on its surface. Much of that water escaped over time. How much water was lost, and how does the water that’s left move from ice to atmosphere to soil? During its first year of operations, NASA’s James Webb Space Telescope will seek answers. Webb also will study mysterious methane plumes that hint at possible geological or even biological activity.

No relation between a supermassive black hole and its host galaxy!?

Science Daily Astronomy - Tue, 2018-02-20 12:30
Using ALMA to observe an active galaxy with a strong ionized gas outflow from the galactic center, a team has obtained a result making astronomers even more puzzled -- the team clearly detected CO gas associated with the galactic disk, yet they have also found that the CO gas which settles in the galaxy is not affected by the strong ionized gas outflow launched from the galactic center.

Astronomers reveal secrets of most distant supernova ever detected

Science Daily Astronomy - Tue, 2018-02-20 10:24
Astronomers have confirmed the discovery of the most distant supernova ever detected -- a huge cosmic explosion that took place 10.5 billion years ago, or three-quarters the age of the Universe itself.

'Ultramassive' black holes discovered in far-off galaxies

Science Daily Astronomy - Tue, 2018-02-20 09:32
Thanks to data collected by NASA’s Chandra X-ray telescope on galaxies up to 3.5 billion light years away from Earth, an international team of astrophysicists was able to detect what is likely to be the most massive black holes ever discovered in the universe. The team’s calculations showed that these “ultramassive” black holes are growing faster than the stars in their respective galaxies.

The starry sky shows nocturnal animals the way

Science Daily Astronomy - Mon, 2018-02-19 10:39
Nocturnal animals can use the stars and the Milky Way to find their way during the darkest hours.

Road Trip!: Elon Musk's Tesla Won't Strike Earth Anytime Soon

Scientifc America - Mon, 2018-02-19 07:00
Plotting the spacefaring car’s interplanetary trajectory helps test forecasts for potentially Earth-threatening asteroids

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Tech Dealers Now Trying to Save the Tech "Addicts" They've Created

Scientifc America - Mon, 2018-02-19 06:45
The new Center for Humane Technology aims to lead the fight against society’s obsession with the Web, apps and social media—but it may just add to the confusion

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