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Orphaned Protostars

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Stars form as gravity contracts the gas and dust in an interstellar cloud until clumps develop that are dense enough to coalesce into stars. Precisely how this happens, however, is very u...

Eternal Light, up for Grabs

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The Outer Space Treaty bars any nation — and by extension, corporation — from owning property on a celestial body, but a loophole in the pact may amount to the same thing, warns a Harvard...

Using X-rays to Map an Asteroid

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NASA's OSIRIS-REx spacecraft will launch September 2016 and travel to the near-Earth asteroid Bennu to harvest a sample of surface material and return it to Earth for study. But before th...

A Different View of the Universe

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Yeilanise Noriega, a sixth-grader at Jackson/Mann K-8 School, recently experienced a course that changed her world perspective exponentially — so much so that she is now convinced life ex...

The Murchison Widefield Array

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Counting up the number of objects of different kinds can help distinguish between models of how they form and evolve. Astronomers have traditionally used number counts of radio sources to...

The Role of Magnetic Fields in Star-Formation

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The star forming molecular clump W43-MM1 is very massive and dense, containing about 2100 solar-masses of material in a region only one-third of a light-year across (for comparison, the n...

Measuring the Shape of the Milky Way's Black Hole

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At the heart of our galaxy's center is SagA*, a supermassive black hole containing about four million solar-masses of material. SgrA* is relatively faint, unlike the supermassive black ho...
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