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All About Meteors, Fireballs and Meteorites

What Is a Fireball? A fireball is an unusually large and bright meteor. To be considered a fireball, the meteor must be at least as bright as Venus. This exceptional brightness is usually a result of a large meteoroid - possibly a few meters in diameter upon entering the atmosphere. When fireballs occur over populated areas, they can generate a large amount of attention.

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