Exoplanets aplenty, Kepler says, and some may be Earthlike. That female sex drug moves neither the Earth nor the FDA. BP's oil spill, mental health, and Congress.

BP's oil spill is the energy story that keeps going and going. But where? Wallet-shock and the future of carbon pricing. Oil spill science. Looking for that Hollywood ending.

There's a little Neandertal in all of us. There's a little personal genomics in all of us. The Gulf oil spill continues to gush, and we owe it all to the second law of thermodynamics.

Volcanic clouds have silver linings. But not all is Eyjafjallajokull. There's more on who owns genes. Also, how to improve your brain. Really.