One More Way We Might Bite the Dust!

Posted by Michael Pinto on Oct 21, 2008 in Science |

The Sun

Don’t panic quite yet — scientists claim that there isn’t anything to be worried about. However this is yet another reminder just how fragile life on earth is:

Sun’s protective ‘bubble’ is shrinking
The protective bubble around the sun that helps to shield the Earth from harmful interstellar radiation is shrinking and getting weaker, NASA scientists have warned.

“New data has revealed that the heliosphere, the protective shield of energy that surrounds our solar system, has weakened by 25 per cent over the past decade and is now at it lowest level since the space race began 50 years ago. Scientists are baffled at what could be causing the barrier to shrink in this way and are to launch mission to study the heliosphere.

“Around 90 per cent of the galactic cosmic radiation is deflected by our heliosphere, so the boundary protects us from this harsh galactic environment.” The heliosphere is created by the solar wind, a combination of electrically charged particles and magnetic fields that emanate a more than a million miles an hour from the sun, meet the intergalactic gas that fills the gaps in space between solar systems.”

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