Geography

Oceans galore

Oceans galore: Most habitable planets may be dominated by oceans

When it comes to exploring exoplanets, it may be wise to take a snorkel along. A new study, published in a paper in the journal...
Earth is in the minority among habitable planets

Earth is in the minority among habitable planets

If we want to send spacecraft to exoplanets to search for life, we better get good at building submarines. A new study shows that our assumptions about...
Well-kept vacant lots can help reduce crime

Well-kept vacant lots can help reduce crime

Maintaining the yards of vacant properties helps reduce crime rates in urban neighborhoods, indicates a new Michigan State University study that's the most comprehensive...
Melting glacier leads to first modern ‘river piracy’

Melting glacier leads to first modern ‘river piracy’

A warming climate has melted northern Canada’s Kaskawulsh Glacier so much that the glacier’s “retreat” has changed the course of a nearby river, new...
Which of hazardous asteroid effects claim the most lives

Which of hazardous asteroid effects claim the most lives

If an asteroid struck Earth, which of its effects--scorching heat, flying debris, towering tsunamis--would claim the most lives? A new study has the answer: violent...
Arctic river ice deposits rapidly disappearing

Arctic river ice deposits rapidly disappearing

Climate change is causing thick ice deposits that form along Arctic rivers to melt nearly a month earlier than they did 15 years ago,...
The dangers of being a saber-toothed cat in Los Angeles 12,000 years ago

The dangers of being a saber-toothed cat in Los Angeles 12,000 years ago

Saber-toothed cats that roamed Los Angeles 12,000 years ago had many injuries to their shoulders and backbones that likely occurred when they killed large...
“Nesting doll” minerals offer clues to Earth’s mantle dynamics

“Nesting doll” minerals offer clues to Earth’s mantle dynamics

Recovered minerals that originated in the deep mantle can give scientists a rare glimpse into the dynamic processes occurring deep inside of the Earth...
Could a Colorado earthquake have been triggered by dinosaur extinction impact?

Could a Colorado earthquake have been triggered by dinosaur extinction impact?

Researchers have found signs of fault displacement at well-known rock outcrops in Colorado that mark the end-Cretaceous asteroid impact that may have hurried the...
Did a comet cause freeze that killed mammoths?

Did a comet cause freeze that killed mammoths?

A comet or asteroid striking the Earth around 13,000 years ago caused the climate to cool, leading to the vanishing of megafauna like mammoths...