News
- Space
Saturn’s rings tell a comet’s tale
Ripples made by a celestial impact 600 years ago can still be seen today.
- Life
When snowpack shrinks, elk can binge on aspen
As winters warm in the Rockies, majestic grazers may be threatening iconic Western tree.
- Life
Stem cell advance uses cloning
A method that uses eggs to do genetic reprogramming is successful in humans.
- Humans
Inca takeovers not usually hostile
Skeletal evidence suggests that war was not the answer for Inca imperialists.
- Life
Heart disease has its own clock
Disrupting circadian rhythms in mouse blood vessels hardens arteries, suggesting that timing malfunctions in organs may cause disease.
