Meteoroids

thumb|upright=1.5|A meteoroid shown entering the atmosphere, causing a visible meteor and hitting the Earth's surface, becoming a [[meteorite]]

thumb|250px|Meteor seen from the site of the Atacama Large Millimeter Array (ALMA)

celestial event caused by streams of meteoroids entering Earth's atmosphere

A bolide is normally taken to mean an exceptionally bright meteor, but the term is subject to more than one definition, according to context. It may refer to any large crater-forming body, or to one that explodes in the atmosphere. It can be a synonym for a fireball, sometimes specific to those with an apparent magnitude of −4 or brighter.

number of meteors a single observer would see in an hour of peak activity for the meteor shower

thumb | right | Alpha-Monocerotid meteor outburst in 1995 Meteoritics is the science that deals with meteors, meteorites, and meteoroids. It is closely connected to cosmochemistry, mineralogy and geochemistry. A specialist who studies meteoritics is known as a meteoriticist.

A micrometeorite is a micrometeoroid that has survived entry through the Earth's atmosphere. Usually found on Earth's surface, micrometeorites differ from meteorites in that they are smaller in size, more abundant, and different in composition. The IAU officially defines meteoroids as 30 micrometers to 1 meter; micrometeorites are the small end of the range (~submillimeter). They are a subset of cosmic dust, which also includes the smaller interplanetary dust particles (IDPs).

thumb|250px|Micrometeorite, collected from the Antarctic snow, was a micrometeoroid before it entered the Earth's atmosphere A micrometeoroid is a tiny meteoroid: a small particle of rock in space, usually weighing less than a gram. A micrometeorite is such a particle that survives passage through Earth's atmosphere and reaches Earth's surface.

meteoroid

Earth-grazing meteoroid captured above Czechoslovakia and Poland on 13 October 1990

Meteoroid that enters Earth's atmosphere and leaves again

small meteor that exploded near the Kamchatka Peninsula on December 2018

Radio propagation mode

possible meteorite fall over Curuçá River, Brazil

purported first known interstellar object, meteor that hit Earth on January 8, 2014

Earth-grazing meteor procession seen across the United States

meteor procession in the 1913s

unusually bright bolide observed on August 18, 1783

meteor that breaks apart into fragments travelling in the same direction

daylight bolide which occurred near Ontario

sound generated by electromagnetic phenomena

hypothetical object