Cassini now orbiting Saturn. The Huygens probe has landed on Titan.

The most ambitious survey project ever undertaken. The survey will map in detail one-quarter of the entire sky, and more than 100 million celestial objects. It will also measure the distances to more than a million galaxies and quasars.

WMAP (Wilkinson Microwave Anisotrophy Probe) is a NASA explorer mission measuring the temparature of the cosmic background radiation.

Four NASA missions to Mars: Mars Pathfinder, Mars Global Surveyor, Mars Surveyor 98, Mars Surveyor 2001.

Designing a community for the red planet.

The study of life in the Universe - includes section on extrasolar planetary systems.

The search for near-Earth objects (NEOs, primarily asteroids) that could someday impact the Earth.