Geography

Prehistoric humans are likely to have formed mating networks to avoid inbreeding

Prehistoric humans are likely to have formed mating networks to avoid inbreeding

Early humans seem to have recognized the dangers of inbreeding at least 34,000 years ago, and developed surprisingly sophisticated social and mating networks to...
Mars volcano, Earth's dinosaurs went extinct about the same time

Mars volcano, Earth’s dinosaurs went extinct about the same time

New NASA research reveals that the giant Martian shield volcano Arsia Mons produced one new lava flow at its summit every 1 to 3...
Dinosaur-killing asteroid could have thrust Earth into 2 years of darkness

Dinosaur-killing asteroid could have thrust Earth into 2 years of darkness

Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth...
Do earthquakes have a 'tell'

Do earthquakes have a ‘tell’?

Researchers have long had good reason to believe that earthquakes are inherently unpredictable. But a new finding from Northwestern University might be a seismic shift...
Scientists find earliest intact mushroom fossils

Scientists find earliest intact mushroom fossils

Paleontologists from China, New Zealand and the United States have found four intact mushroom fossils, sources from the Chinese Academy of Sciences said Friday. The...
Large volcanic eruptions in Tropics can trigger El Niño events

Large volcanic eruptions in Tropics can trigger El Niño events

Explosive volcanic eruptions in the tropics can lead to El Niño events, those notorious warming periods in the Pacific Ocean with dramatic global impacts...
Life on Earth started after meteorites splashed into warm little ponds

Life on Earth started after meteorites splashed into warm little ponds

Life on Earth began somewhere between 3.7 and 4.5 billion years ago, after meteorites splashed down and leached essential elements into warm little ponds,...
Extreme heat could cause animals to shrink (again)

Extreme heat could cause animals to shrink (again)

More than 50 million years ago, when Earth experienced a series of extreme global warming events, early mammals responded by shrinking in size. While this...
Large Solar Storm Sparks Global Aurora and Doubles Radiation Levels on the Martian Surface

Large solar storm sparks global aurora and doubles radiation levels on the Martian surface

An unexpectedly strong blast from the Sun hit Mars this month, observed by NASA missions in orbit and on the surface. "NASA's distributed set of...
Asteroid that killed dinosaurs may have sped up bird evolution

Asteroid that killed dinosaurs may have sped up bird evolution

A new study suggests the asteroid that wiped out the dinosaurs some 66 million years ago could have increased the pace of evolution in...