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Space Exploration News

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astrophysics, cosmology, the universe...

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Charting the slow death of the Universe

Astronomers studying over 200,000 galaxies have measured the energy generated within a large portion of space more precisely than ever. This represents the most comprehensive assessment of the energy output of the nearby Universe. They confirm that the energy produced in a section of the Universe today is only about half what it was two billion years ago and is occurring from the ultraviolet to the far infrared.

Posted: Aug 10th, 2015

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Hubble finds evidence of galaxy star birth regulated by black-hole fountain

Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies continue making stars long after their peak years of star birth. NASA's Hubble Space Telescope's exquisite high resolution and ultraviolet-light sensitivity allowed the astronomers to see brilliant knots of hot, blue stars forming along the jets of active black holes found in the centers of giant elliptical galaxies.

Posted: Aug 6th, 2015

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Gravitational constant appears universally constant, pulsar study suggests

Gravity, one of the four fundamental forces of nature, appears reassuringly constant across the Universe, according to a decades-long study of a distant pulsar. This research helps to answer a long-standing question in cosmology: Is the force of gravity the same everywhere and at all times? The answer, so far, appears to be yes.

Posted: Aug 6th, 2015

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Saturn's rings in a supercomputer

Researchers have explained the structure of Saturn's rings and modeled them using a supercomputer - this result can be applied to a variety of systems.

Posted: Aug 6th, 2015

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Astronomers unveil a distant protogalaxy connected to the cosmic web

A team of astronomers has discovered a giant swirling disk of gas 10 billion light-years away - a galaxy-in-the-making that is actively being fed cool primordial gas tracing back to the Big Bang. The finding provides the strongest observational support yet for what is known as the cold-flow model of galaxy formation.

Posted: Aug 5th, 2015

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The ghost of a dying star

This extraordinary bubble, glowing like the ghost of a star in the haunting darkness of space, may appear supernatural and mysterious, but it is a familiar astronomical object: a planetary nebula, the remnants of a dying star. This is the best view of the little-known object ESO 378-1 yet obtained and was captured by ESO's Very Large Telescope in northern Chile.

Posted: Aug 5th, 2015

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Cassiopeia's hidden gem: The closest rocky, transiting planet

A star in the constellation Cassiopeia has a planet in a three-day orbit that transits, or crosses in front of its star. At a distance of just 21 light-years, it is by far the closest transiting planet to Earth, which makes it ideal for follow-up studies. Moreover, it is the nearest rocky planet confirmed outside our solar system.

Posted: Aug 3rd, 2015

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A cleanroom to sterilize space probes

Components used on a space mission must be cleaned meticulously. Fraunhofer researchers designed a cleanroom for the ESA (European Space Agency) in which the most infinitesimal contaminants can be removed.

Posted: Aug 3rd, 2015

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