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  2. Meteoroid - Wikipedia

    en.wikipedia.org/wiki/Meteoroid

    Millions of meteors occur in Earth's atmosphere daily. Most meteoroids that cause meteors are about the size of a grain of sand, i.e. they are usually millimeter-sized or smaller. Meteoroid sizes can be calculated from their mass and density which, in turn, can be estimated from the observed meteor trajectory in the upper atmosphere.

  3. List of largest meteorites on Earth - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_meteorites...

    This is a list of largest meteorites on Earth. Size can be assessed by the largest fragment of a given meteorite or the total amount of material coming from the same meteorite fall: often a single meteoroid during atmospheric entry tends to fragment into more pieces. The table lists the largest meteorites found on the Earth's surface.

  4. Meteorite - Wikipedia

    en.wikipedia.org/wiki/Meteorite

    Once it settles on the larger body's surface, the meteor becomes a meteorite. Meteorites vary greatly in size. For geologists, a bolide is a meteorite large enough to create an impact crater. [2] Meteorites that are recovered after being observed as they transit the atmosphere and impact Earth are called meteorite falls.

  5. List of bolides - Wikipedia

    en.wikipedia.org/wiki/List_of_bolides

    A bolide: a very bright meteor of an apparent magnitude of −14 or brighter. Fireball over the Bering Sea viewed from space (18 December 2018) The following is a list of bolides and fireballs seen on Earth in recent times. These are small asteroids (known as meteoroids) that regularly impact the Earth.

  6. Geminid meteor shower hits peak activity in December: Here's ...

    www.aol.com/geminid-meteor-shower-hits-peak...

    Those resulting fireballs, better known as "shooting stars," are meteors. If meteoroids survive their trip to Earth without burning up in the atmosphere, they are called meteorites, NASA says ...

  7. Meteoritics - Wikipedia

    en.wikipedia.org/wiki/Meteoritics

    Meteoritics [note 1] is the science that deals with meteors, meteorites, and meteoroids. [note 2] [2] [3] It is closely connected to cosmochemistry, mineralogy and geochemistry. A specialist who studies meteoritics is known as a meteoriticist. [4]

  8. Meteorite classification - Wikipedia

    en.wikipedia.org/wiki/Meteorite_classification

    Meteorite classification may indicate that a "genetic" relationship exists between similar meteorite specimens. Similarly classified meteorites may share a common origin, and therefore may come from the same astronomical object (such as a planet, asteroid, or moon) known as a parent body.

  9. List of impact structures on Earth - Wikipedia

    en.wikipedia.org/wiki/List_of_impact_structures...

    These features were caused by the collision of meteors (consisting of large fragments of asteroids) or comets (consisting of ice, dust particles and rocky fragments) with the Earth. For eroded or buried craters, the stated diameter typically refers to the best available estimate of the original rim diameter, and may not correspond to present ...

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