New Radiation Belt Discovered Around Earth
NASA's Van Allen Probes mission has discovered a previously unknown third radiation belt around Earth, revealing the existence of unexpected structures and processes within these hazardous regions of space.
http://www.scienceda...30228155430.htm
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New Radiation Belt Discovered Around Earth
Started by
seeder
, Mar 02 2013 12:32 PM
5 replies to this topic
#1
seeder
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Posted 02 March 2013 - 12:32 PM
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#2
Waspie_Dwarf
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Posted 02 March 2013 - 10:04 PM
Previously Undetected Radiation Belt Revealed
Since their discovery over 50 years ago, the Earth’s Van Allen radiation belts have been considered to consist of two distinct zones of trapped, highly energetic charged particles. Observations from NASA’s Van Allen Probes reveal an isolated third ring in the outer radiation belt.
Credit: NASA
Source: NASA - Multimedia
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#3
diablo_04
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Posted 03 March 2013 - 02:12 AM
Is there any possibility that the 3th radioactive belt is man made, buy secret nuclear testing above the earth atmosphere?
Its kind a strange that its took so long to find a 3th radioactive belt and there were so many space flights with instruments on board.
Its kind a strange that its took so long to find a 3th radioactive belt and there were so many space flights with instruments on board.
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#4
Waspie_Dwarf
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Posted 04 March 2013 - 01:28 AM
diablo_04, on 03 March 2013 - 02:12 AM, said:
Is there any possibility that the 3th radioactive belt is man made, buy secret nuclear testing above the earth atmosphere?
diablo_04, on 03 March 2013 - 02:12 AM, said:
Its kind a strange that its took so long to find a 3th radioactive belt and there were so many space flights with instruments on board.
Most satellites travel below or above the radiation belts to avoid the problems that long exposure to radiation would cause, so there is still a lot not known about this region of space.
The article also points out that this third belt was a transient event:
Quote
Scientists observed the third belt for four weeks before a powerful interplanetary shock wave from the sun annihilated it.
If we assume this is not a one off event then the factr that this belt is so short lived means that it should not be surprising that it has been missed before.
"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001
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#5
danielost
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Posted 04 March 2013 - 01:40 AM
Waspie_Dwarf, on 04 March 2013 - 01:28 AM, said:
None, you couldn't keep a nuclear detonation in low Earth orbit secret.
Why is it strange?
Most satellites travel below or above the radiation belts to avoid the problems that long exposure to radiation would cause, so there is still a lot not known about this region of space.
The article also points out that this third belt was a transient event:
If we assume this is not a one off event then the factr that this belt is so short lived means that it should not be surprising that it has been missed before.
Sounds like it showed up just in time to protect us from that radiaton shot.
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#6
Waspie_Dwarf
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Posted 04 March 2013 - 01:50 AM
danielost, on 04 March 2013 - 01:40 AM, said:
Sounds like it showed up just in time to protect us from that radiaton shot.
The radiation belts aren't what protect us but are a result of the process that does. We are protected by the Earth's magnetic field which traps radioactive particles. It is these trapped particles whichcause the Van Allen belts.
"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001
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