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- Mercury, the smallest and innermost planet, has no moons, or at least none that can be detected to a diameter of 1.6 km (1.0 mi).
en.wikipedia.org/wiki/List_of_natural_satellites
Mercury, the smallest and innermost planet, has no moons, or at least none that can be detected to a diameter of 1.6 km (1.0 mi). [2] For a very short time in 1974, Mercury was thought to have a moon .
Earth's natural satellite is the Moon, but many objects in our Solar System have multiple natural satellites. Humans have also created artificial satellites—human-made machines and spacecraft in orbit around our Earth or other objects in our galaxy.
Mercury has no natural satellite. As of the early 2020s, many broad details of Mercury's geological history are still under investigation or pending data from space probes. Like other planets in the Solar System, Mercury was formed approximately 4.5 billion years ago.
Oct 2, 2024 · Venus and Mercury have no natural satellites. Earth possesses one natural satellite called the Moon. The Moon orbits Earth at an average distance of 238,855 miles (384,400 kilometers).
Of the inner planets, Mercury and Venus have no natural satellites; Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos.
Nov 1, 2007 · Mercury and Venus are the only major planets in the Solar System that do not possess known natural satellites.
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BepiColombo includes two satellites: the Mercury Planetary Orbiter (MPO) and the Mercury Magnetosphere Orbiter (MMO, also nicknamed "Mio"). MPO will take images of Mercury's surface and exosphere in different kinds of light, while Mio will study the hot planet's magnetic field.
