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Although the Moon is Earth's only natural satellite, there are a number of near-Earth objects (NEOs) with orbits that are in resonance with Earth. These have been called "second" moons of Earth or "minimoons". [2] [3] 469219 Kamoʻoalewa, an asteroid discovered on 27 April 2016, is possibly the most stable quasi-satellite of Earth. [4]
The ring was first formally proposed after 21 impact craters from the meteor event were found to be located along a straight band around the Earth's equator. [10] [11] Andrew G. Tomkins, [9] Erin L. Martin [9] and Peter A. Cawood, [9] working with Monash University, released a study in September 2024 that gave evidence on the existence of the ...
Smaller moons may (and most likely do) exist around each of these planets, but are currently undetectable from Earth. Although spacecraft have visited all of these planets, Earth-based telescopes continue to outperform them in moon-detection ability due to their greater availability for wide-field surveys. [citation needed]
The ring would have formed along the equator due to Earth’s equatorial bulge, similar to how the rings of Saturn, Jupiter, Uranus and Neptune are also around each of those planets’ equatorial ...
A 2024 study suggests that Earth may have had a ring system for a period of 40 million years, starting from the middle of the Ordovician period (around 466 million years ago). This ring system may have originated from a large asteroid that passed by Earth at this time and had a significant amount of debris stripped by Earth's gravitational pull ...
Saturn system – Rings and Titan from Arecibo Observatory. Mapping of Titan's surface and observations of other moons from the Cassini spacecraft. [62] As Venus, Titan also possesses an opaque atmosphere. By 2018, there have been radar observations of 138 main belt asteroids, 789 near-Earth asteroids, and 20 comets, including 73P/Schwassmann ...
The Kordylewski clouds are located near the L 4 and L 5 Lagrange points of the Earth–Moon system. They are about 6 degrees in angular diameter. [7] The clouds can drift up to 6 to 10 degrees from those points. [11] Other observations suggest they move around the Lagrange points in ellipses of about 6 by 2 degrees. [7]
A belt of objects embedded in a planetary ring, especially around Saturn, such as those in the A Ring, S/2009 S 1 in the B Ring ("propeller" moonlets), [2] [3] and those in the F Ring [4] Occasionally asteroid moons, such as those of 87 Sylvia [5] Flashes seen near Jupiter's moon Amalthea that is likely debris ejected from its surface [6 ...