Archivo: Los Angeles Times

Researchers have recreated a split-second impact of a meteor with primoridal Earth, and shown how the 3.5-megaton collision might have reorganized common molecules into some of the early building blocks that led to all life.

Some 40 million years ago around the Baltic Sea coast, an insect-killing plant was busy trapping bugs. Its leaves, about as long as a pencil eraser, eventually fell into sticky sap, which hardened to amber and stayed there until miners scooped it up, cut it with a dental drill, polished it up and sold it to a collector in Hamburg, Germany.

Scientists detected an invisible shield roughly 7,200 miles above the Earth’s surface that is protecting us from harmful, super-fast electrons flying close to the speed of light.

It may sound like Star Trek tech, but this mysterious protective barrier isn’t science fiction. The findings, described in the journal Nature, could help scientists better understand the complex dynamics of the Van Allen radiation belts.

Stress in this generation could mean resilience in the next, a new study suggests.

SCientists using robotic ocean gliders to wander frigid Antarctic waters say they may have discovered a mechanism behind the melting of polar ice shelves – miniature submarine «storms» that are lobbing packets of warmer water toward the continent.