What are the only 2 planets that do not have at least 1 moon?
The answer is no moons at all. That's right, Venus (and the planet Mercury) are the only two planets that don't have a single natural moon orbiting them. Figuring out why is one question keeping astronomers busy as they study the Solar System.
Which planets have no moons and why?
Venus and Mercury are the only planets in our solar system with no moons. That's primarily because they're too small and too close to the Sun to retain a moon, and Venus's motion is too unusual. The other planets and dwarf planets in our solar system have at least one moon, but Mars may lose one in 10-50 million years.
What two planets have moons?
The inner planets Mercury and Venus have no moons. Earth is the only planet with one moon. Mars has two moons, though there is evidence that they are breaking up and in a few million years Mars will have no moons.
Does Pluto have a moon?
CharonStyxHydraNixKerberos Pluto/Moons
Does Uranus have a moon?
TitaniaOberonUmbrielMirandaArielPuck Uranus/Moons
Does Mercury have a moon?
Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons.
Does Neptune have a moon?
TritonThalassaHippocampNesoNereidDespina Neptune/Moons
Does Mars have a moon?
PhobosDeimos Mars/Moons Mars' moons are among the smallest in the solar system. Phobos is a bit larger than Deimos, and orbits only 3,700 miles (6,000 kilometers) above the Martian surface. No known moon orbits closer to its planet. It whips around Mars three times a day, while the more distant Deimos takes 30 hours for each orbit.
Does Saturn have a moon?
TitanEnceladusMimasDioneTethysIapetus Saturn/Moons Saturn has 82 moons. Fifty-three moons are confirmed and named and another 29 moons are awaiting confirmation of discovery and official naming. Saturn's moons range in size from larger than the planet Mercury — the giant moon Titan — to as small as a sports arena.