Extraterrestrial impact preceded ancient global warming event

In a new study, scientists say they have found evidence along the New Jersey coast that an extraterrestrial object hit the earth at the same time a mysterious release of carbon dioxide suddenly warmed the planet, some 55.6 ...

Astrobiologists claim meteorite carried space algae

(Phys.org) —A fireball that appeared over the Sri Lankan province of Polonnaruwa on December 29, 2012 was a meteorite containing algae fossils, according to a paper published in the Journal of Cosmology. A team of researchers, ...

Topper site in middle of comet controversy

(Phys.org)—Did a massive comet explode over Canada 12,900 years ago, wiping out both beast and man in North America and propelling the earth back into an ice age?

New evidence supporting theory of extraterrestrial impact found

An 18-member international team of researchers that includes James Kennett, professor of earth science at UC Santa Barbara, has discovered melt-glass material in a thin layer of sedimentary rock in Pennsylvania, South Carolina, ...

Scientists discover nanodiamonds in Greenland ice

(PhysOrg.com) -- University of Maine volcanologist Andrei Kurbatov and glaciologist Paul Mayewski, along with 21 other scientists, coauthored a scientific paper released late last month that details the discovery of a layer ...