|Life on Europa?
Life on Europa could exist in a salty ocean deep below its frozen surface.
Pictures of the Universe Views of the most interesting objects in our universe by NASA.
||Gems from Space
Extraterrestrial Gems Numerous materials from space are used as attractive gems.
Asteroid Impact Craters! See 50 of Earth\'s largest impact craters with Google Maps.
Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.
||Geology of Pluto
Geology of Pluto NASA finds craters, nitrogen ice flows, mountains, and possible dunes.
Moon\'s Internal Structure The Moon has a structure similar to earth and an iron-rich core.
Meteorites - Rocks that were once parts of planets or large asteroids.
|Who Owns the Moon?
Who Owns the Moon? Does the U.S. have any claim to the Moon, asteroids or planets?
||Diamonds In Space
Diamonds In Space Diamonds have been found in meteorites and other celestial bodies.
||Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
Near-Earth Asteroids Since Earth formed it has been hit with rocks from space.
Exploring a Hydrocarbon Sea on Titan with a submarine is a potential NASA mission.
||Volcanoes on Mars
Olympus Mons is the highest point on Mars and largest volcano in the solar system.
The Richest Meteorite Field - More meteorites found here than anywhere else on Earth.
||Volcanoes in Space
Active Volcanoes in other parts of the solar system are different from those on Earth.
|Largest Impact Crater
The Vredefort Crater is the largest and 2nd oldest impact crater visible on Earth.
||Asteroids and Earth
Earth-Crossing Asteroids Can we do anything about an asteroid that is might hit Earth?
||Volcanoes on Venus
Volcanoes on Venus? The surface of Venus is covered by lava flows and shield volcanoes.
Vesta Meteorites About 5% of the meteorites found on Earth are from the asteroid Vesta.
|Lunar Rift System
Lunar Rift System? Gravity maps revise the geologic history of the near side of the moon.
Olivine Rain? Space Telescope detects olivine crystals raining on a distant star.