NASA Science

EarthAdvancing Earth System Science to meet the challenges of climate and environmental change.

HeliophysicsSeeking to understand the Sun and its interactions with the Earth and solar system.

PlanetsAscertaining the content, origin and evolution of the solar system and the potential for life elsewhere.

AstrophysicsDiscovering how the universe works, exploring how the universe began and evolved, and searching for Earth-sized planets.

Image of the Day

Composite of a Series of Images Taken From Space Aboard the Station

May 18, 2012

This is a composite of a series of images photographed from a mounted camera on the Earth-orbiting International Space Station, ...

Image of the Day Gallery

Solar Eclipse May 20

A "ring of fire" solar eclipse is coming to the USA this Sunday. It's the first annular eclipse visible from the contiguous United States in almost 18 years.

Watch our ScienceCast: Solar Eclipse in the USA

Venus Transit June 5

On June 5th, 2012, Venus will transit the face of the sun in an event of both historical and observational importance.

Watch our latest ScienceCast: The 2012 Transit of Venus

More on the Venus Transit