Science / Geology / Meteorite: A stony or metallic object from inter-planetary space that penetrates the atmosphere to impact on the surface.
Science / Geology / Micrometeorite: A meteorite less than 1 millimeter in diameter. MORE
Science / Geology / Ray: A linear landform of the lunar surface emanating from a large crater and extending as much as 100 kilometers outward, probably consisting of fine ejecta thrown out by the impact of a meteorite. MORE
Science / Geology / Astrobleme: An ancient circular scar on Earth's surface produced by the impact of a meteorite or comet. Use our Google maps page to get close up images of these meteor impact structures. MORE