A spectacular mid-level solar flare was captured by NASA's Solar Dynamics Observatory, which released stunning footage of the looping whip of fire.

With less than a year to the magical year 2015, when the Millennium Development Goals (MDGs) is expected to have ended most of the developing countries’ challenges in health...

The U.S. space agency NASA plans to send humans to an asteroid and Mars, eventually. But a group of prominent U.S. scientists says right now, any deep space mission will be too dangerous, based on NASA's minimum safety requirements.