The sun protects humans from cosmic rays and dust from beyond the solar system by enveloping in the heliosphere, a bubble of solar wind that extends past Pluto.
Refreshing News reports: "These rays would damage the ozone layer and interstellar dust can dim sunlight and trigger an ice age."
However, when the solar system passes through very dense gas and dust clouds, the heliosphere can shrink until its edge is inside Earth's orbit. So, in their research, the team, led by David Smith, has calculated the squeezing of various stars' protective "astrospheres".
http://refreshingnews9.blogspot.com/2009/06/sun-leaves-earth-wide-open-to-cosmic.html
Op de site Wereldgeheimen: “Exploderende sterren bestoken ons inderdaad met kosmische straling”
Utrechtse astronomen hebben voor het eerst metingen verricht die direct laten zien dat supernovaresten uitstekende deeltjesversnellers zijn. In hun onderzoek, dat op Science Express is gepubliceerd, hebben ze data van ESO’s Very Large Telescope gecombineerd met die van NASA’s Chandra Röntgensatelliet.
http://www.wereldgeheimen.nl/wg/index.php?option=com_content&view=article&id=1062:exploderende-sterren-bestoken-ons-inderdaad-met-kosmische-straling&catid=40:het-heelal&Itemid=68
skip to main |
skip to sidebar
Atomium in Brussel
Health, gezondheid * Natuur, nature * Dieren, animals * Milieu, environment * Oceanen * Mensenrechten * Kindsoldaten * Voedselcrisis * GM en Monsanto * Economie, economy * Klimaat, climate * Energie, energy * Technologie, technology * Science, wetenschap * Internet * Privacy * Reizen, travel * Foto's * Muziek
Atomium in Brussel