Sun protective bubble decreases quickly

utorak, 8. ožujka 2011.

Heliosphere, the huge solar bubble that protects the Earth from lethal cosmic radiation, reducing the unexpected speed, new research has NASA spacecraft Interstellar Boundary Explorer (IBEX), which explores the interaction of solar particles with dangerous radiation from space, he discovered that the edges of our systems more dynamic than previously thought.

The charged particles in the form of solar wind our star shines far beyond the orbit distant planets collide with matter in interstellar space and create a bubble of Earth, but also protects other bodies of cosmic radiation.

'IBEX-These data reveal that the models that we have used to describe the interaction of solar winds from the galaxy completely wrong, "said David McComas on Thursday, the head of NASA's programs, writes tportal.

First of all, so far it was assumed that the spread and reduce the heliosphere depends on the 11-year cycles of solar activity during which the number of charged particles the sun changes.

However, the IBEX-These data reveal that the heliosphere in the last six months decreased significantly more than was anticipated. This rapid deflation of the protective bubble could pose a major threat to the astronauts, because the balloon fails to significantly higher levels of radiation that could affect their immune system.

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