Far below South Dakota, a cave holds pure, promising water

Hundreds of feet beneath the Black Hills, a team of scientists and researchers snake through dark, narrow and silent corridors of ancient rock to reach their goal: what is thought to be some of the purest water on Earth.

UN climate talks: the sticking points

The 195-nation UN climate talks resume Monday when rank-and-file diplomats gather in Bonn to lay the foundation for a global climate pact to be inked in December.

New Horizons team selects potential Kuiper Belt flyby target

NASA has selected the potential next destination for the New Horizons mission to visit after its historic July 14 flyby of the Pluto system. The destination is a small Kuiper Belt object (KBO) known as 2014 MU69 that orbits ...

NASA, NOAA satellites show Erika affecting Hispaniola

Tropical Storm Erika was centered in the Eastern Caribbean Sea and affecting Puerto Rico and Hispaniola when NASA's Terra satellite passed overhead mid-day on Friday, August 28, 2015. Two hours after Terra passed, NOAA's ...

Twitter sets modest goals to diversity its workforce

Twitter is setting modest goals to diversify its workforce while it fights a proposed class-action lawsuit that says the online messaging service discriminates against its female employees.

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