News
- Archaeology
Peru’s Serpent Mountain sheds its mysterious past
No, aliens had nothing to do with a winding 1.5-kilometer-long path of holes. First used as a market, the Inca then repurposed it for tax collection.
- Science & Society
If another country tested nuclear weapons, here’s how we’d know
President Trump has argued the U.S. should test nuclear weapons because other countries are doing it. But scientific data suggest they’re not.
- Plants
A special shape shift helps a shrub thrive in blistering heat
A microscope reveals an algae-like adaptation that might future-proof crop photosynthesis in extreme heat.
- Materials Science
What causes the rainbow shimmer of ammolite gems?
Ammolite gems’ fabulous colors arise from delicate assemblies of crystal plates.
