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Data on 60,000 stars illuminate knowledge of galaxy's orgin

Scientists with the Sloan Digital Sky Survey III (SDSS-III), including Penn State astronomers, have released to the publ…

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Mission to build world's most advanced telescope reaches major milestone

Work on the Thirty Meter Telescope (TMT), named for its 30-meter primary mirror — three times the diameter of the larges…

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Navigating our way through solar threats

Global Navigation Satellite Systems (GNSS) are now routinely used for high accuracy operations around the globe. But the…

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CfA-Built Telescope on IRIS Sees First Light

NASA's Interface Region Imaging Spectrograph (IRIS) observatory has produced its first images and spectra of a little un…

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Shedding New Light on the Brightest Objects in the Universe

Dartmouth astrophysicists Ryan Hickox and Kevin Hainline and colleagues have a paper scheduled for publication in The As…

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Team led by University of Leicester sets new record for cosmic X-ray sightings

Exploring the extreme Universe with a rich new resource

Scientists led by the University of Leicester have set a new record for cosmic X-ray sources ever sighted – creating an …

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A warmer planetary haven around cool stars, as ice warms rather than cools

In a bit of cosmic irony, planets orbiting cooler stars may be more likely to remain ice-free than planets around hotter…

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Earth's Gold Came from Colliding Dead Stars

We value gold for many reasons: its beauty, its usefulness as jewelry, and its rarity. Gold is rare on Earth in part bec…

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Seeing Snow in Space

Caltech helps capture the first image of a frosty planetary-disk region

Although it might seem counterintuitive, if you get far enough away from a smoldering young star, you can actually find …

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Newly discovered flux in the Earth may solve missing-mantle mystery

Research points to large reservoirs of material deep in the mantle that may help to explain Earth’s origins.

It’s widely thought that the Earth arose from violent origins: Some 4.5 billion years ago, a maelstrom of gas and dust c…

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Cloud Behavior Expands Habitable Zone of Alien Planets

Study doubles number of potentially habitable planets orbiting red dwarfs

Researchers at the University of Chicago and Northwestern University based their study, which appears in Astrophysical J…

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New knowledge about early galaxies

The early galaxies of the universe were very different from today’s galaxies. Using new detailed studies carried out wit…

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Astronomers witness birth of Milky Way’s most massive star

Scientists have observed in unprecedented detail the birth of a massive star within a dark cloud core about 10,000 light years from Earth.

The team used the new ALMA (Atacama Large Millimetre/submillimetre Array) telescope in Chile – the most powerful radio t…

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Sun's Loops are Displaying an Optical Illusion

The Sun's outer atmosphere, or corona, has posed an enduring mystery. Why is it so hot? The Sun's visible surface is onl…

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Cosmochemist discovers potential solution to meteorite mystery

Chondrules may have formed from high-pressure collisions in early solar system

A normally staid University of Chicago scientist has stunned many of his colleagues with his radical solution to a 135-y…

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Cosmic radio bursts point to cataclysmic origins

Mysterious bursts of radio waves originating from billions of light years away have left the scientists who detected them speculating about their origins.

The international research team, writing in the journal Science, rule out terrestrial sources for the four fast radio bu…

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Feeding Galaxy Caught in Distant Searchlight by International Research Team

An international group of astronomers that includes UC Santa Barbara astrophysicist Crystal Martin and former UCSB postd…

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Spiral galaxies like Milky Way bigger than thought, says CU-Boulder study

Let’s all fist bump: Spiral galaxies like our own Milky Way appear to be much larger and more massive than previously be…

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UA Strong Ally in NASA’s Call to Find Dangerous Asteroids

In line with NASA's recently issued "Asteroid Grand Challenge," the UA is at the forefront of discovering and tracking s…

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First Transiting Planets in a Star Cluster Discovered

All stars begin their lives in groups. Most stars, including our Sun, are born in small, benign groups that quickly fall…

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