Uncategorized

Earth

Bad days for dinosaurs began long before the last of them died

Space

Atom & Cosmos

The gassy halo engulfing the Milky Way, a comet in the neighborhood, and extraterrestrial rocks as the source of life on Earth.

Astronomy

No companion in supernova debris

Explosion probably resulted from two white dwarfs.

Health & Medicine

Male DNA found in female brains

Postmortem sampling suggests fetal cells can slip through the blood-brain barrier.

Astronomy

Curiosity goes to the flow

Sent to Mars in search of water and other evidence of habitability, the rover appears to have landed in a dry streambed.