Tektites
comets and asteroids
A meteorite is a natural object originating in outer space that survives impact with the Earth's surface. A meteorite's size can range from small to extremely large. Most meteorites come from small astronomical objects called meteoroids, but they are also sometimes produced by impacts of asteroids.
meteorites
Small objects - and even some fairly large objects - that strike the Earth are heated to incandescence by friction and compression as they enter the Earth's atmosphere. Most such meteorites either explode harmlessly far above the ground or are vaporized entirely.
Meteorites
Some comets are made of ice and dust.
Small fragments that have entered Earth's atmosphere and fallen to the surface are called meteorites. Meteorites are pieces of asteroids or comets that survive the journey through Earth's atmosphere and impact the ground. They can vary in size, composition, and shape.
Radium exist in very small concentrations in some meteorites.
A meteor is what a meteoroid is known as when it enters the Earth's atmosphere and becomes visible in what is colloquially known as a shooting star. Unlike a comet, a meteor has no parts. It is simply what a meteoroid looks like as it streaks through the atmosphere.
If it's big, its an asteroid, if its small its a meteoroid. (But no one defines "big" or "small".
Meteorites help us understand the composition of asteroids because meteorites are small asteroids.
Small fragments that have entered the Earth's atmosphere and fallen to the surface are called meteorites. They can originate from asteroids, comets, or other celestial bodies and can vary in size from tiny dust particles to large rocks. Studying meteorites can provide insights into the composition and history of our solar system.