In our solar system, Jupiter's moon Europa has an ocean twice the size of all Earth's oceans combined. Is Europa inhabited?
Diameter: 12,742 km
Average Ocean Depth: ~4 km
Volume: ~1.4 billion km3
Liquid Saltwater Surface Ocean
Earth's surface is 29% land, 71% liquid water
Polar Ice Cap
Regional Liquid Salt Water Ocean
Rocky Sea Floor
Diameter: 3,120 km
Average Ocean Depth: ~100 km
Volume: ~3 billion km3
Liquid Saltwater Sub-Surface Ocean
Europa's surface is covered in a global water ice crust/ Estimates range from 3 km - 30 km thick
Global Liquid Saltwater Ocean
Rocky Sea Floor
So Why Does This Matter?
Because Earth's Oceans are teeming with life!
The Earth's Oceans are Home to:
50-80% of all life on Earth
At least 224,000 named species
Plants, bacteria, fungi, reptiles, mammals, reefs, algae, fish, mollusks, and many more
Extremophiles, surviving from the freezing temperatures below arctic sea ice to the boiling temperatures near deep sea hydrothermal vents
On Earth, wherever we find water, we find life.
And Europa has twice the water of Earth, so...
Is There Life?
Credit: Jet Propulsion Laboratory
#NASA #Space #Europa #Ocean #Water #Liquid #Life #Habitable #Jupiter #Moon #Science #Spacecraft #Robotics #Exploration #SolarSystem #JPL #JohnHopkins #University #Infographic
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