Size. Ganymede is the largest and most massive moon in the Solar System. Its diameter of 5,268 km is 0.41 times that of Earth, 0.77 times that of Mars, 1.02 times that of Saturn’s Titan (Solar System’s second largest moon), 1.08 times Mercury’s, 1.09 times Callisto’s, 1.45 times Io’s and 1.51 times the Moon’s.
Are any of Jupiter’s moons bigger than Earth?
Only Jupiter’s moon Ganymede is larger, by just 2 percent. Titan is bigger than Earth’s moon, and larger than even the planet Mercury. … Titan is also thought to have a subsurface ocean of water.
Can humans live on Ganymede?
Although Ganymede is larger than Mercury it only has half its mass, classifying it as low density. … However, it is too thin to support life as we know it; it is unlikely that any living organisms inhabit Ganymede. Magnetosphere: Ganymede is the only satellite in the solar system to have a magnetosphere.
What is the largest moon?
Ganymede. Ganymede is the largest moon in the solar system (larger than the planet Mercury), and is the only moon known to have its own internally generated magnetic field.
Can humans live on Jupiter’s moons?
Europa, the fourth-largest moon of Jupiter, is a subject in both science fiction and scientific speculation for future human colonization. Europa’s geophysical features, including a possible subglacial water ocean, make it a possibility that human life could be sustained on or beneath the surface.
Does Jupiter have 79 moons?
There are 79 known moons of Jupiter, not counting a number of moonlets likely shed from the inner moons.
What are the 5 largest moons of Jupiter?
ESA Science & Technology – Jupiter’s largest moons
From top to bottom, the moons are Io, Europa, Ganymede and Callisto. Europa is almost the same size as Earth’s moon, while Ganymede, the largest moon in the Solar System, is larger than planet Mercury.
Can a person live on Saturn?
Without a solid surface, Saturn isn’t likely a place we could ever live. But the gas giant does have numerous moons, some of which would make fascinating locations for space colonies, particularly Titan and Enceladus.
Is Ganymede a God?
Ganymede is the god of homosexual love and desire. He was a divine hero whose homeland was Troy and was the most beautiful of mortals.
Can a human survive on Pluto?
It is irrelevant that Pluto’s surface temperature is extremely low, because any internal ocean would be warm enough for life. This could not be life depending on sunlight for its energy, like most life on Earth, and it would have to survive on the probably very meagre chemical energy available within Pluto.
Is Pluto larger than the moon?
Pluto is smaller than Earth’s moon. This dwarf planet takes 248 Earth years to go around the sun. … Its largest moon is named Charon (KAIR-ən). Charon is about half the size of Pluto.
What are the top 5 largest moons?
| Largest moons in the Solar System (diameter over 1,000 km) | ||
|---|---|---|
| Moon | Planet | Mass (planet = 1) |
| Ganymede | Jupiter | 7.80 x 10–5 |
| Titan | Saturn | 2.37 x 10–4 |
| Callisto | Jupiter | 5.67 x 10–5 |
What is the biggest thing in the universe?
The largest known structure in the Universe is called the ‘Hercules-Corona Borealis Great Wall’, discovered in November 2013. This object is a galactic filament, a vast group of galaxies bound together by gravity, about 10 billion light-years away.
Can we breathe on Titan?
Another theoretically possible means to become airborne on Titan would be to use a hot air balloon-like vehicle filled with an Earth-like atmosphere at Earth-like temperatures (because oxygen is only slightly denser than nitrogen, the atmosphere in a habitat on Titan would be about one third as dense as the surrounding …
Can we breathe on Europa?
Europa has a thin oxygen atmosphere, but it is far too tenuous for humans to breathe. … Europa’s magnetic field shields its surface from Jupiter’s deadly radiation.
Can we live on moon?
Though the Moon has no liquid water, in 2018 NASA confirmed it does exist on the surface in ice form. … Settlers would use this water for drinking, and extract the hydrogen and oxygen for rocket fuel. And they would also save some for another key element of survival – growing food.