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Our solar system is full of floating space debris: Comets, meteors, asteroids and more. What are the differences that make up these various space rocks?
Satellites in geostationary orbit. From the list in the first section, these are the closest known asteroids per year that approach Earth within one lunar distance.More than one asteroid per year may be listed if its geocentric distance [note 1] is within a tenth of the lunar distance, or 0.10 LD.
This is a list of asteroids that have impacted Earth after discovery and orbit calculation that predicted the impact in advance. As of December 2024, all of the asteroids with predicted impacts were under 5 m (16 ft) in size that were discovered just hours before impact, and burned up in the atmosphere as meteors.
Space probe broke orbit on 5 September 2012 and headed to Ceres; first "big four" asteroid visited by a spacecraft, largest asteroid visited by a spacecraft at the time. 4179 Toutatis: 2.45: 1934 Chang'e 2: 2012 3.2 0.70 Flyby; [1] closest asteroid flyby, first asteroid visited by a Chinese probe. 1 Ceres: 939.4 1801 Dawn: 2015–2018: 35 0.07
In this dramatic illustration, a meteor falls toward Earth from space. A pair of asteroids that rammed into Earth more than 35 million years ago seemingly had no climate impacts, scientists said ...
Four huge asteroids — and a fifth that's much smaller — are passing Earth on Thursday in their closest approaches to the planet ever recorded. 4 large asteroids, including 1 the size of a ...
belt asteroid type C [83] Amphitrite 29: 102 ± 1: 12.7 ± 2.0: belt asteroid type S [83] Egeria 13: 101 ± 2: 9.2 ± 2.1: belt asteroid type G [83] Iris 7: 100 ± 5: 13.5 ± 2.3: belt asteroid type S [83] Legend: centaur – asteroids orbiting between the outer planets Jupiter trojan – asteroids located in Jupiter's L 4 and L 5 Lagrange points
Meteors from Halley’s comet. As Earth orbits the sun, it encounters the debris trail from Halley’s comet twice a year. The first occurs in May when particles from the comet’s outbound leg ...