... News . ... Supernova showered Earth with radioactive debris . ... The Real Reality Show: Would aliens be anything like us? ... The Real Reality Show . ... New study shows earthly gold came from 'alien' bombardment . The findings provide new evidence that gold, platinum, palladium, and other iron-loving elements found in the crusts and mantles of Earth, the Moon, and Mars arrived on mini-planet-sized impactors during the final phase of planet formation in our solar system. ... Oldest to newest . ...

Sixty-five million years ago, about 70 percent of all species then living on Earth disappeared within a very short period. ... Paleontologists speculated and theorized for many years about what could have caused this mass extinction, known as the K-T event (Cretaceous-Tertiary Mass Extinction event). ... The Alvarez team suggested that the enhancement was the product of a huge asteroid impact. ... Sulfuric acid aerosols may have cooled Earth for years. ... Appendix C ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit?йs . des reportages . ... les plus belles images de l'Univers d?йcrypt?йes pour vous . ... des pages consacr?йes ?а la publication de vos photos Mais c'est aussi une vraie communaut?й avec laquelle partager votre passion et nourrir votre curiosit?й. Accueil Le Luxembourg veut exploiter les ast?йro?пdes . ... A lire : LтАЩeldorado des ast?йro?пdes, Ciel & Espace num?йro de janvier-f?йvrier , en kiosques actuellement. ...