All Stories
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- Planetary Science
Curiosity gets the dirt on Mars
The NASA rover completes an analysis of the first soil collected from Gale Crater.
- Neuroscience
An on-off switch for eating
By triggering or silencing certain brain cells, scientists can get mice to feed or stop feeding regardless of hunger.
- Life
Newfound biological clocks set by the moon
Two unrelated marine organisms have rhythms dictated by tides, lunar cycle.
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- Plants
Hard-shelled seaweed survives by its loose knees
Stringy joints between calcified algae’s segments don’t break easily under repeated stresses.
- Earth
Oxygen wafted into Earth’s atmosphere earlier than thought
Date pushed back to 3 billion years ago, suggesting photosynthesis had evolved by then.
- Life
Immune protein explains skin diseases’ link to infection
Molecule called IL-29 protects people with psoriasis from viruses.
- Psychology
Mental rotation gears up by age 5 for both boys and girls
Kid-friendly test suggests that the ability to visualize objects from different angles starts early.
- Environment
Pregnant women carry fewer traces of flame retardants
Class of toxins linked to IQ deficits dropped drastically in three years, a new study shows.
