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Earth & Space News
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Today's earth & space headlines from the sources selected by our team:

Mapping the road to quantum gravity
The road uniting quantum field theory and general relativity -- the two great theories of modern physics -- has been impassable for 80 years. Could a tool from condensed matter physics finally help map the way?
Space & Time News -- ScienceDaily, Thu, 24 Apr 2014 07:08:48 GMT

Some astronauts at risk for cognitive impairment, animal studies suggest
Rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even when the radiation exposure is in extremely low dose ranges, new research shows. The cognitive impairments — which affected a large subset, but far from all, of the animals — appear to be linked to protein changes in the brain, the scientists say.
Space & Time News -- ScienceDaily, Thu, 24 Apr 2014 07:08:48 GMT

Liquid spacetime: What if spacetime were a kind of fluid?
What if spacetime were a kind of fluid? This is the question tackled by theoretical physicists working on quantum gravity by creating models attempting to reconcile gravity and quantum mechanics. Some of these models predict that spacetime at the Planck scale is no longer continuous – as held by classical physics – but discrete in nature. Just like the solids or fluids we come into contact with every day, which can be seen as made up of atoms and molecules when observed at sufficient resolution. A structure of this kind generally implies, at very high energies, violations of Einstein’s special relativity (a integral part of general relativity).
Space & Time News -- ScienceDaily, Thu, 24 Apr 2014 07:08:48 GMT

Solar Eclipse Will Transform Sun into 'Ring of Fire' Next Week
The sun will look like a ring of fire above some remote parts of the world next Tuesday (April 29) during a solar eclipse, but most people around the world won't get a chance to see it.
SPACE.com, Thu, 24 Apr 2014 07:08:48 GMT

'Ring of Fire' Annular Solar Eclipse of April 29, 2014 (Visibility Maps)
On April 29, 2014, the moon will block much of the sun in a so-called annular solar eclipse, also known as a "ring of fire" solar eclipse. See where the solar eclipse will be visible from in this Space.com gallery.
SPACE.com, Thu, 24 Apr 2014 07:08:48 GMT

Moon and Mercury Shine Together in Amateur Photo
Skywatcher Victor Rogus of Jadwin, Missouri captured this wonderful image of 4 percent illuminated moon in conjunction with planet Mercury on Feb. 27, 2014. See how he did it.
SPACE.com, Thu, 24 Apr 2014 07:08:48 GMT

First-of-its-kind NASA space-weather project
A NASA scientist is launching a one-to-two-year pilot project this summer that takes advantage of U.S. high-voltage power transmission lines to measure a phenomenon that has caused widespread power outages in the past.
Phys.org: Astronomy & Space News, Thu, 24 Apr 2014 07:08:49 GMT

Some astronauts at risk for cognitive impairment, animal studies suggest
Johns Hopkins scientists report that rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even when the radiation exposure is in extremely low dose ranges.
Phys.org: Astronomy & Space News, Thu, 24 Apr 2014 07:08:49 GMT

Spacewalking astronauts complete urgent repair job (Update)
Spacewalking astronauts easily replaced a dead computer outside the International Space Station on Wednesday and got their orbiting home back up to full strength.
Phys.org: Astronomy & Space News, Thu, 24 Apr 2014 07:08:49 GMT

Soviet space capsule up for sale in Belgium
For those who have everything, how about a Soviet-era space capsule dating back to the 1970s, when it carried three cosmonauts into space?
Phys.org: Astronomy & Space News, Thu, 24 Apr 2014 07:08:49 GMT

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SpaceRef.com
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white line spacer SpaceFlight Now
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white line spacer Space Daily
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white line spacer Space.com
rank:4
white line spacer Universe Today
rank:5
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