A space rock that strikes the surface of the Earth. Most meteorites are classified as stony because of their mineral composition, which may include olivine, pyroxene, serpentine, sulfates, organic compounds, iron, and nickel.
Meteoritical material that has fallen on Earth, ranging in size and weight from tiny stones of 2.5 ounces to mammoth objects weighing 60 tons or more. (The microscopic particles of cosmic dust falling on Earth are called "micrometeorites.")
A solid body that has arrived on the Earth or Moon from outer space. It can range in size from microscopic to many tons. Its composition ranges from that of silicate rocks to metallic iron-nickel. For a thorough discussion see Meteorites by Brian Mason, John Wiley and Sons, 1962.
A piece of interplanetary debris, usually rocky, which fell from space, and survived the journey to the surface of the Earth. If observed to fall, and then recovered, referred to as a 'fall'. If not observed, and subsequently recovered, referred to as a 'find'.
extraterrestrial material that falls to Earth. Most meteorites are thought to be composed of relatively primitive matter, similar to that which formed the Earth, and to be derived from the asteroid belt between the solar orbits of Mars and Jupiter.
These are different. Meteors are small particles, usually smaller than grains of sand, which travel through space: they become visible as 'shooting stars' when they enter the Earth's atmosphere and burn up as a result of friction. Meteorites, on the other hand, are large enough to reach the ground without being destroyed. Big ones produce craters.
A fragment of an asteroid or a planet that has been broken off by a collision and eventually falls on the Earth. It consists of solid matter which survives the descent and lands on the Earth's surface.
meteor which survives its passage through the atmosphere and hits the ground. About 3000 are believed to hit the earth every year, as well as large amounts of dust from burnt up meteoroids. There are about fifteen recorded discoveries of meteorites every year. About two thirds of these are finds, that is when the meteorite is found some time after falling. The remaining third are falls, this is where a meteorite is seen to fall and then traced to its landing place. Particularly impressive falls, bright enough to cast a shadow, are called fireballs.
a piece of comet or asteroid debris from space that does not completely disintegrate in Earth's atmosphere. It survives passage through the atmosphere and can be found as a (usually iron-rich) rock on the ground.
The solid particle, either stone or iron, that falls through the atmosphere to produce a meteor. Most meteorites are fragments of asteroids. Science museums display meteorites that survived their falls.
A metallic or stony (silicate) body that has fallen on Earth (or other planetary body) from outer space. Most meteorites come from asteroids, but a small number come from the Moon or Mars (see SNC meteorites). Meteorite types include: iron, stony iron, chondrite, carbonaceous chondrite, and achondrite. Smaller than 1 mm are called "micrometeorites." SNC meteorites: one of the 12 meteorites thought to have come from Mars. The letters SNC stand for the three types of meteorites: Shergottites, Nakhlites, and Chassigny.
a body from space, believed to be asteroidal in origin, that hits the ground; classified as stony, iron, and stony-iron; generally named after a city or geographical landmark near where they fell or were found.
Fragments of rock that reach the Earth from beyond the atmosphere. Most are believed to come from asteroids, some are believed to be pieces from other planets. Antarctica is a particularly good place to find meteorites as they show up against the snow and ice and are accumulated in some places by the flow patterns of ice streams and glaciers.
A solid particle from space which enters the Earth's atmosphere and reaches the surface. Meteorites are classified as iron meteorites (siderites) and stone meteorites (aerolites) according to their compositions.
a small rock from space that makes it to the surface of a planet without burning up in the planet's atmosphere. This distinguishes it from when it is passing through the atmosphere, glowing hot from the friction with the atmosphere and is called a meteor.
a meteor that has reached the earth without burning up. Meteorites are of two types --stony and metallic. The later consist mainly of iron, plus substantial amounts of nickel. Iron meteorites survive tghe trip through the atmosphere better than the stony ones. [AHDOS
A meteorite is a natural object originating in outer space that survives an impact with the Earth's surface without being destroyed. While in space it is called a meteoroid. When it enters the atmosphere, air resistance causes the body to heat up and emit light, thus forming a fireball, also known as a meteor or shooting star.