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Life on Earth began 4.1 billion years ago, says study
New evidence suggests that life on Earth began 300 million years earlier than previously documented, pushing the origin of life close to when the planet formed.
October 27, 2015
7.5-magnitude earthquake strikes Afghanistan
Hundreds reported dead, with the death toll set to rise. The most severely affected areas are remote. As of late Monday, communications were cut off.
October 26, 2015
Hurricane Patricia slams into Mexico
Floods and landslides remain a risk from Patricia - strongest storm yet recorded in the Western Hemisphere. The storm caused less damage than expected. It went from a tropical storm to a Category 5 hurricane in just 24 hours.
October 24, 2015
Where did the first dogs come from?
New DNA analysis says your pooch's ancestors were Central Asian wolves
October 23, 2015
Asteroid showers linked to mass extinctions, says study
Scientists find links between comet and asteroid showers and recurring mass extinctions of life on Earth, including the demise of the dinosaurs.
October 21, 2015
Daily views of Earth on new NASA website
Each sequence of images shows the Earth as it rotates, revealing the whole globe over the course of a day from a million miles away. It's cool!
October 21, 2015
Neutrinos, ghost particles … what are they?
Physicist John Beacom explains the mystery of neutrinos, the almost massless and almost noninteracting elementary particle.
October 16, 2015
Warmer ocean may be releasing frozen methane
Bubble plumes off of Oregon and Washington suggest a warmer ocean might be releasing frozen methane.
October 15, 2015
El Niño strengthening
"This baby is too big to fail,” said NASA climatologist Bill Patzert. “Over North America, this winter will definitely not be normal."
October 14, 2015
Which animals live on glaciers?
Icy glaciers and perennial snow patches provide a home or resting place for 19 species of birds and 16 species of mammals - 17, if humans are included.
October 14, 2015
