News
- Climate
Historical events linked to changes in Earth’s temperature
Ozone treaty, wars and Great Depression influenced global warming rate, scientists find.
- Life
Immune system follows circadian clock
Mice with jet lag have boosted supply of cells linked to inflammation.
- Planetary Science
Meteor explosions like this year’s Russian fireball more common than thought
Chelyabinsk-sized rocks may come to Earth every 30 years, on average.
- Life
Newborns’ weak immunity may allow helpful bacteria to gain a foothold
Though infant immune systems raise risk of infection, they also allow good microbes into the body, study in mice shows.
