Geology of Other Planets
What Is a Planet?
Should geologists care what kind of planet Pluto is?
Planetology, the New Science
Planets have gone from gods, to worlds, to mere examples of a species.
Geo-Quiz Number 21: Other Planets
Who wants to be a geo-whiz? The trivia game--subject: OTHER PLANETS.
A Field Trip to the Moon
Astronaut Harrison Schmitt, the only geologist ever to do field work off Earth, tells how it felt to stand on the ancient lunar ground.
Meteorites: Pieces of Other Planets
Rocks from the Moon, Mars and Venus are (or might be) found on Earth too.
Geology of the Planet Mercury
The planet Mercury is poised for an explosion of new information.
Introducing Venus
Introducing the mysterious cycles of Venus geology.
The Mystery that Is Mars
Geologists take their place at the end of a long chain of storytellers about Mars. They'll need lots of time to get the story right, because just making stuff up won't do.
Asteroid Geology
Recent work is finding remnants of planetary formation in the astroid belt.
Jupiter's Moon Io, the Real Volcano World
Does Jupiter's amazing moon Io teach us about Earth?
Geology of Titan
Saturn's icy moon Titan is the most Earthlike object in the solar system.
Titan's Changing Face
In Physics Today, Researcher Ralph Lorenz summarizes the amazing moon of Saturn and its Earthlike environment.
Map-a-Planet
The U.S. Geological Survey allows you to slice and dice map data for all surveyed planets and the Moon.
Discoveries in Planetary Science
The American Astronomical Society produces Powerpoint slide sets, suitable for college lectures, on planetary topics too new for the textbooks. Mars, Moon and Venus are among them.
Planetary Exploration Newsletter
Keep up with the meetings and proceedings at this central site.
Views of the Solar System
The best tour of the planets, including Earth, on the Web.
Gazetteer of Planetary Nomenclature
Your one-stop shop for planetary features, maintained by the USGS Astrogeology Research Program and developed in cooperation with the International Astronomical Union.
Extrasolar Planets Encyclopaedia
Keep up with the burgeoning roster of planets orbiting other stars.