News
- Archaeology
A new study questions when people first reached South America
Data suggest people lived at Chile’s Monte Verde site thousands of years later than thought, challenging key “pre-Clovis” evidence. Not all agree.
- Earth
Earth’s continental plates were moving 3.48 billion years ago
Magnetic crystals provide the earliest evidence yet of the plate tectonics that likely made Earth habitable, pushing its start back by 140 million years.
- Physics
A static electricity mystery comes to the surface
Seemingly random charging of identical materials depends on the carbonaceous molecules stuck to their surfaces
- Animals
Sharks are ingesting drugs in the Bahamas
Nearly one third of sharks studied near the Bahamas’ Eleuthera Island were found to have caffeine, painkillers and other drugs in their bloodstreams.
