Earth
- Climate
Rate of atmospheric carbon dioxide rise unprecedented
The current rate of carbon dioxide entering the atmosphere is unprecedented over at least the last 66 million years, new research shows.
- Astronomy
Wandering planets, the smell of rain and more reader feedback
Readers consider how hard it would be to fashion Paleolithic tools, discuss what to call free-floating worlds and more.
- Physics
Scientists take first picture of thunder
Scientists precisely capture thunder sound waves radiating from artificially triggered lightning.
- Animals
Lazy sunfish are actually active predators
Ocean sunfish were once thought to be drifting eaters of jellyfish. But they’re not, new research shows.
- Physics
Explanation for G’s imprecision stumbles
A surprising new result seems to suggest that subtle changes in Earth’s rotation rate could account for physicists’ difficulty in measuring Newton’s gravitational constant. But some confusion with dates appears to derail the finding.
- Earth
Cosmic rays illuminate lightning
Radio waves emitted by particles zipping through thunderstorms allow physicists to probe thunderclouds and, perhaps eventually, learn what triggers lightning strikes.
- Earth
Stronger quakes could strike other segments of Nepal fault
The magnitude 7.8 earthquake that struck Nepal’s capital city could be overshadowed by larger future earthquakes along the Himalayas, scientists say.
- Ecosystems
Just 1 percent of Amazon’s trees hold half of its carbon
Roughly 1 percent of tree species in the Amazon rainforest account for half of the jungle’s carbon storage.
- Earth
Hidden water found deep beneath Antarctica desert valley
New imaging reveals liquid water network beneath Antarctica’s McMurdo Dry Valleys that could support microbial life.
- Climate
Warming’s role in extreme weather quantified
Scientists calculate how much to blame human-driven climate change for extreme high temperatures and heavy rainfall.
- Earth
Massive magma pool found deep below Yellowstone
Earthquake waves reveal massive magma reservoir deep inside the Yellowstone supervolcano.
- Animals
Bees may like neonicotinoids, but some may be harmed
Two high-profile tests raise worries that bees can’t avoid neonicotinoid pesticides and that wild species are at special risk.
