News tagged with space radiation
Astronomers solve mystery of vanishing energetic electrons in Earth's outer radiation belt
UCLA researchers have explained the puzzling disappearing act of energetic electrons in Earth's outer radiation belt, using data collected from a fleet of orbiting spacecraft.
Jan 29, 2012 |
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What activates a supermassive black hole?
A new study combining data from ESO's Very Large Telescope and ESA's XMM-Newton X-ray space observatory has turned up a surprise. Most of the huge black holes in the centres of galaxies in the past 11 billion ...
Jul 13, 2011 |
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Fermi telescope spots 'superflares' in the Crab Nebula (w/ video)
(PhysOrg.com) -- The famous Crab Nebula supernova remnant has erupted in an enormous flare five times more powerful than any flare previously seen from the object. On April 12, NASA's Fermi Gamma-ray Space ...
May 12, 2011 |
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'Necropanspermia' suggested as a way of seeding life on Earth
(PhysOrg.com) -- Panspermia is a mechanism for spreading organic material throughout the galaxy, but the destructive effects of cosmic rays and ultraviolet light tend to mean most organisms would be destroyed ...
Space & Earth / Space Exploration
Nov 12, 2010 |
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Hubble astronomers discover early universe was overheated
If you think global warming is bad, 11 billion years ago the entire universe underwent, well, universal warming.
Oct 07, 2010 |
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Hubble snaps sharp image of cosmic concoction (w/ Video)
(PhysOrg.com) -- A colourful star-forming region is featured in this stunning new NASA/ESA Hubble Space Telescope image of NGC 2467. Looking like a roiling cauldron of some exotic cosmic brew, huge clouds ...
Jul 13, 2010 |
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Asteroid Caught Marching Across Tadpole Nebula
(PhysOrg.com) -- A new infrared image from NASA's Wide-field Infrared Survey Explorer, or WISE, showcases the Tadpole nebula, a star-forming hub in the Auriga constellation about 12,000 light-years from Earth. ...
May 13, 2010 |
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New Hubble Maps of Pluto Show Surface Changes (w/ Video)
(PhysOrg.com) -- NASA today released the most detailed set of images ever taken of the distant dwarf planet Pluto. The images taken by NASA's Hubble Space Telescope show an icy and dark molasses-colored, mottled ...
Feb 04, 2010 |
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Scientists Reproduce a Building Block of Life in Laboratory
(PhysOrg.com) -- NASA scientists studying the origin of life have reproduced uracil, a key component of our hereditary material, in the laboratory.
Nov 06, 2009 |
4.9 / 5 (28) |
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Scientists Explore Galactic Frontier, Release First-Ever All-Sky Map (w/ Video)
(PhysOrg.com) -- NASA's Interstellar Boundary Explorer, or IBEX, spacecraft has made it possible for scientists to construct the first comprehensive sky map of our solar system and its location in the Milky ...
Space & Earth / Space Exploration
Oct 15, 2009 |
4.6 / 5 (24) |
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Solar Cycle Driven by More than Sunspots
(PhysOrg.com) -- Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun's impact on Earth over the course of the 11-year solar ...
Space & Earth / Space Exploration
Sep 17, 2009 |
4.2 / 5 (14) |
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Warped debris disks around stars are blowin' in the wind (w/ Video)
(PhysOrg.com) -- The dust-filled disks where new planets may be forming around other stars occasionally take on some difficult-to-understand shapes. Now, a team led by John Debes at NASA's Goddard Space Flight ...
Aug 28, 2009 |
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High-energy Electrons Could Come from Pulsars -- or Dark Matter
(PhysOrg.com) -- Something in our galactic neighborhood seems to be producing large numbers of high-energy electrons, according to new data gathered by the Fermi Gamma-ray Space Telescope. The electrons could ...
May 05, 2009 |
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Galaxy Cores to Crash in a Few Million Years
(PhysOrg.com) -- A new image from NASA's Spitzer Space Telescope offers a rare view of an imminent collision between the cores of two merging galaxies, each powered by a black hole with millions of times the ...
Mar 16, 2009 |
4.5 / 5 (23) |
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Mars Orbiter's Computer Reboots Successfully
(PhysOrg.com) -- NASA's Mars Odyssey orbiter properly followed commands today to shut down and restart, a strategy by its engineers to clear any memory flaws accumulated in more than five years since Odyssey's ...
Space & Earth / Space Exploration
Mar 12, 2009 |
5 / 5 (2) |
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Health threat from cosmic rays
The health threat from cosmic rays is the danger posed by cosmic rays generated by the Sun and other stars to astronauts on interplanetary missions. Cosmic rays consists of high energy protons and other nuclei. They are one of the most important barriers standing in the way of plans for interplanetary travel by crewed spacecraft.
For more information about Health threat from cosmic rays, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
