All Stories by Sid Perkins
- Earth
Some volcanic hot spots may have a surprisingly shallow heat source
Mysterious hot spots of volcanic activity in the interior of tectonic plates just got a little stranger.
- Paleontology
‘Penis worms’ may have been the original hermits
Soft-bodied critters called penis worms inhabited abandoned shells — a la modern-day hermit crabs — by about 500 million years ago, a study suggests.
- Earth
Earth is reflecting less light. It’s not clear if that’s a trend
A decrease in Earth’s reflectance shows our planet is absorbing more solar radiation, but it’s not clear if the trend will last.
- Chemistry
Radiometric dating puts pieces of the past in context. Here’s how
Carbon dating and other techniques answer essential questions about human history, our planet and the solar system.
- Paleontology
Fossil tracks may reveal an ancient elephant nursery
Fossilized footprints at a site in Spain include those of an extinct elephant’s newborns, suggesting the animals may have used the area as a nursery.
- Space
Jupiter’s intense auroras superheat its upper atmosphere
Jupiter’s hotter-than-expected upper atmosphere may be caused by high-speed charged particles slamming into the air high above the poles.
- Planetary Science
Marsquakes reveal the Red Planet boasts a liquid core half its diameter
Analyses of seismic waves picked up by NASA’s InSight lander shed new light on the planet’s core and give clues to the thickness of the crust.
- Climate
Collapse may not always be inevitable for marine ice cliffs
Runaway collapse of ice cliffs could dramatically boost sea level. But these cliffs may not be so vulnerable, new simulations suggest.
- Earth
A new book uses stories from tsunami survivors to decode deadly waves
In ‘Tsunami: The World’s Greatest Waves,’ two scientists chronical hundreds of eyewitness accounts to show the human cost of life at the water’s edge.
- Animals
Newly recognized tricks help elephants suck up huge amounts of water
New ultrasound imaging reveals what goes on inside a pachyderm’s trunk while feeding. It can snort water at the rate of 24 shower heads.
- Paleontology
T. rex’s incredible biting force came from its stiff lower jaw
T. rex could generate incredibly strong bite forces thanks to a boomerang-shaped bone that stiffened the lower jaw, a new analysis suggests.
- Climate
Climate change may have changed the direction of the North Pole’s drift
A mid-1990s shift in the movement of the pole was driven by glacial melt, in part caused by climate change, among other factors, a new study reports.
