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Comets created Earth's oceans, study concludes

A Moral Gene?

Venus springs ozone layer surprise

Surprise High Energy Pulses Blast From the Crab

Can You Catch Alzheimer's Disease?

The Plan to Bring an Asteroid to Earth

Study suggests humans are still evolving

Probiotics may treat anxiety, depression

An Addiction Vaccine?

Yawning May Cool the Brain

Talk Therapy Lifts Severe Schizophrenics

Brain tweak turns wimpy mice into dominant leaders

Scientists discover a 'master key' to unlock new treatments for autoimmune disorders

Plant RNAs Found in Mammals

Mutation Tied to Need for Less Sleep Is Discovered

Baptistina Asteroid Did Not Cause Dinosaur Extinction