Giant eruptions billions of years ago left behind huge craters

Molecules drive bugs away as well as DEET does

Find might have come from ancient relative of today’s flowering plants

Astronomers chart the atmosphere of Kepler-7b

Organs grown in a lab dish do their job when transplanted into mice

Agriculture's introduction led to big falls as well as rises in numbers of Europeans

Germs accompany body's decay in consistent time sequence

Molecule from toxin makes mice less sensitive to acid, heat

International panel's confidence increases that society is responsible for global warming

What gobbles up millions of tons of poisonous ammonia each year, making the water safe for fish?

Rover completes analysis of first soil collected from Gale Crater

By triggering or silencing certain brain cells, scientists can get mice to feed regardless of hunger

Marine organisms have rhythms dictated by tides, lunar cycle

Stringy joints between calcified algae's segments don't break easily under repeated stresses

Molecule called IL-29 protects people with psoriasis from viruses

Date pushed back to 3 billion years ago

Math-related visualization skill emerges rapidly in preschool years

Massaging the sugary gel into babies' mouths may lessen need for intravenous infusions

Immune system seems to remember cancer in people who've never had it

Babies react to a snake’s hiss, fire’s crackle and other ancient danger sounds