Yea Jin Jun

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The Biology Of Altruism: Good Deeds May Be Rooted In The Brain

Four years ago, Angela Stimpson agreed to donate a kidney to a complete stranger.<p>"The only thing I knew about my recipient was that she was a female and she lived in Bakersfield, Calif.," Stimpson says.<p>It was a true act of altruism — Stimpson risked pain and suffering to help another. So why did …

Week's Best Space Pictures: A Star Pulses, a Hurricane Rages, and a Planet Sucks

Astronomers catch the blue light from a pulsar, a hurricane makes landfall, and an exoplanet sucks the life out of its star in the week's best space pictures.