News
-
SpaceFirst rock from the sun turns out to have ice
Frozen material at the planet’s poles likely came from comet or asteroid impacts.
By Tanya Lewis -
Health & MedicineSimulated brain mimics human quirks
Model representing 2.5 million neurons performs calculations, issues instructions for a behavior, and then expands its decision into action.
-
EarthGrand Canyon could be much older than thought
Disputed dating of rock erosion pegs the ancient chasm as 70 million years old.
-
EarthShrinking polar ice caused one-fifth of sea level rise
Comprehensive analysis quantifies ice sheet loss in Greenland and Antarctica.