Researchers analyzing meteorite fragments that fell on a frozen lake in Canada have developed an explanation for the origin of life's handedness – why living things only use molecules with specific orientations.
The greatest climate change the world has seen in the last 100,000 years was the transition from the ice age to the warm interglacial period.
Washington, D.C. — In order to understand Earth's earliest history–its formation from Solar System material into the present-day layering of metal core and mantle, and crust–scientists look to meteorites.
For several days this month, Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations. Nearly the entire ice cover of Greenland, from its thin, low-lying coastal edges to its two-mile-thick center, experienced some degree of melting at its surface, according to measurements from […]