By definition, a moon must be much smaller than the planet it orbits. However, if we list all the moons and planets in our solar system, moons can be larger than planets. Saturn’s largest moon, Titan, and Jupiter’s largest moon Ganymede are larger than Mercury, the smallest planet in the solar system. If Pluto was still a planet, it would be smaller than four additional moons: Neptune’s ‘Triton’, Jupiter’s ‘Io’ and ‘Europa’, and Earth’s Moon. Pluto‘s** diameter is only twice that of its moon, Charon. Watch this video to learn more about moons and planets.
** Pluto is also home to a very large moon called ‘Charon,’ but it doesn’t really orbit it. Instead, both orbit a singular point of mass between them. This is the only known double planetary system. ***
We have recently posted a video on electromagnetic waves that NASA probes have captured in space and scientists have converted them to spooky sounds. Watch the video here: https://www.youtube.com/watch?v=fZFz3fpfelE
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Footage: NASA
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