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Space Exploration News

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astrophysics, cosmology, the universe...

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A new kind of cosmic glitch

The physics behind some of the most extraordinary stellar objects in the Universe just became even more puzzling. A group of astronomers using NASA's Swift satellite have discovered a new kind of glitch in the cosmos, specifically in the rotation of a neutron star.

Posted: May 29th, 2013

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Measuring all the light in the universe since the Big Bang

How much light has been emitted by all galaxies since the cosmos began? After all, almost every photon from ultraviolet to far infrared wavelengths ever radiated by all galaxies that ever existed throughout cosmic history is still speeding through the Universe today. If we could carefully measure the number and energy (wavelength) of all those photons we might learn important secrets about the nature and evolution of the Universe.

Posted: May 24th, 2013

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Hubble reveals the Ring Nebula's true shape

The Ring Nebula's distinctive shape makes it a popular illustration for astronomy books. But new observations by NASA's Hubble Space Telescope of the glowing gas shroud around an old, dying, sun-like star reveal a new twist.

Posted: May 23rd, 2013

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A hidden population of exotic neutron stars

Magnetars - the dense remains of dead stars that erupt sporadically with bursts of high-energy radiation - are some of the most extreme objects known in the Universe. A major campaign using NASA's Chandra X-ray Observatory and several other satellites shows magnetars may be more diverse and common - than previously thought.

Posted: May 23rd, 2013

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Rare merger reveals secrets of galaxy evolution

A rare encounter between two gas-rich galaxies spotted by ESA's Herschel space observatory indicates a solution to an outstanding problem: how did massive, passive galaxies form in the early Universe?

Posted: May 22nd, 2013

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NASA builds unusual testbed for analyzing X-ray navigation technologies

Pulsars have a number of unusual qualities. Like zombies, they shine even though they're technically dead, and they rotate rapidly, emitting powerful and regular beams of radiation that are seen as flashes of light, blinking on and off at intervals from seconds to milliseconds. A NASA team has built a first-of-a-kind testbed that simulates these distinctive pulsations.

Posted: May 21st, 2013

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Earth watcher Proba-V opens its eyes

Earth watcher Proba-V is in good health following its launch last week. The Vegetation imager has been switched on and the first image has been captured over western France.

Posted: May 18th, 2013

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