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A meteoroid (/ ˈ m iː t i ə r ɔɪ d / MEE-tee-ə-royd) [1] is a small rocky or metallic body in outer space. Meteoroids are distinguished as objects significantly smaller than asteroids, ranging in size from grains to objects up to 1 m (3 ft 3 in) wide. [2] Objects smaller than meteoroids are classified as micrometeoroids or space dust.
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.
February 3, 2025 at 9:23 PM Using artificial intelligence, scientists have discovered a crater from a meteoroid that they say shook material as deep as the Red Planet’s mantle: the layer between ...
2023 DW is a near-Earth asteroid of the Aten group.It is approximately 50 meters (160 feet) in diameter, roughly the size of the asteroid that caused the Tunguska event, [a] and was discovered by Georges Attard and Alain Maury, from the MAP (Maury/Attard/Parrott) asteroid search program in San Pedro de Atacama on 26 February 2023, when it was 0.07 AU (10 million km) from Earth. [1]
Jordanians look at the desert sky during the Leonid meteor shower, near Amman, in the early hours of August 12, 2004. Meteors are the debris left in the wake of a passing comet infiltrating the ...
On average, the Orionids produce anywhere from 10 to 20 meteors per hour at their peak in mid-to-late October. An exception came between 2006 and 2009 when the 50 to 75 meteors the Orionids put ...
Unlike most meteor showers, the Quadrantid meteor shower doesn't originate from a comet, but from an asteroid. For many years, the origin of the Quadrantids remained unknown. Though the ...
The Geminids are a prolific meteor shower with 3200 Phaethon (which is thought to be an Apollo asteroid [4] with a "rock comet" orbit. [5]) being the parent body. [6]Because of this, it would make this shower, along with the Quadrantids, the only major meteor showers not originating from a comet.