Exploratorium: Your Weight on Other Worlds
A java applet that calculates this for you
Kepler: A Search for Habitable Planets
NASA's first mission capable of finding Earth-size planets around other stars.
The Planetary Society
Check here for the latest news and discovery in extrasolar planets, extraterrestrial life, and more.
NASA: Solar System Exploration
Read the latest news about NASA explorations.
ESA: Mars Express
Mars Express is the European Space Agency's mission to Mars.
NASA: Mars Exploration Program
Includes information for kids, students and teachers.
NASA: Mars Exploration Rover Spirit
Landed on Mars in January 2004
Mars Global Surveyor
Mars Global Surveyor became the first successful mission to the red planet in two decades when it launched November 7, 1996, and entered orbit on September 12, 1997. It began its prime mapping mission in March 1999 and has studied the entire Martian surface, atmosphere, and interior, and has returned more data about the red planet than all other Mars missions combined.
The Mars Society
Working towards the exploration and settlement of Mars.
Cassini Solstice Mission to Saturn & Titan
On June 30, 2004, the Cassini spacecraft entered orbit around Saturn to begin the first in-depth, up-close study of the ringed planet and its domain.
Planetary Society: Extrasolar Planet
In 1995 a planet was discovered orbiting a distant star. Since then more "extrasolar" planets have been discovered.