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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.
Moon\'s Internal Structure The Moon has a structure similar to earth and an iron-rich core.
Geology of Pluto
Geology of Pluto NASA finds craters, nitrogen ice flows, mountains, and possible dunes.
Meteorites - Rocks that were once parts of planets or large asteroids.
Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Diamonds In Space
Diamonds In Space Diamonds have been found in meteorites and other celestial bodies.
Who Owns the Moon?
Who Owns the Moon? Does the U.S. have any claim to the Moon, asteroids or planets?
Near-Earth Asteroids Since Earth formed it has been hit with rocks from space.
Largest Impact Crater
The Vredefort Crater is the largest and 2nd oldest impact crater visible on Earth.
Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
Volcanoes on Mars
Olympus Mons is the highest point on Mars and largest volcano in the solar system.
Volcanoes in Space
Active Volcanoes in other parts of the solar system are different from those on Earth.
Asteroids and Earth
Earth-Crossing Asteroids Can we do anything about an asteroid that is might hit Earth?
Exploring a Hydrocarbon Sea on Titan with a submarine is a potential NASA mission.
Olivine Rain? Space Telescope detects olivine crystals raining on a distant star.
Volcanoes on Venus
Volcanoes on Venus? The surface of Venus is covered by lava flows and shield volcanoes.
The Richest Meteorite Field - More meteorites found here than anywhere else on Earth.
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.