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Jupiter's icy moon Europa has long been thought of as a potentially friendly place for life in the solar system. But what would human explorers find if they set down their ship on the moon's icy shell?
- Europa is thought to have a vast water ocean beneath its icy surface, and is considered the best place to find life (animals?) in our solar system.
- Europa's surface is relatively smooth, lacking large craters and mountains because convective ocean forces constantly recycle Europa's surface ice.
- If you were to look in any direction, you'd see little ridges, no more than a couple of meters high
- You'd also see numerous cracks that crisscross the globe.
- These cracks and ridges are likely the result of the daily rise and fall of Europa's subsurface ocean due to tidal forces from Jupiter.
- Set up your base on the side of Europe permanently facing Jupiter. Jupiter's magnetosphere showers Europa with deadly radiation, which is far stronger on the side facing away from the planet.
- The view is awesome. Jupiter would look almost 24 times larger in the sky than Earth's moon appears from the planet's surface.
- Dress warm. The temperature averages about minus 260 degrees Fahrenheit (minus 160 degrees Celsius) near the equator and minus 370 F (minus 220 C) near the poles.
- You'd definitely feel lighter. Gravity is similar to that on Earth's moon.
- Low gravity means almost no atmosphere. Which results in no weather, no wind, no sky colors. That sounds dull. But wait.
- Excitement never ends. Watch out for earthquakes, for giant plumes of water that could violently shoot out of the ice. There would also be a small chance you'd be hit by a small meteor or particles from space.
- Sightseeing ideas: the "chaos terrain," where the normally flat ice has been fragmented into jumbled blocks. It looks like Monument Valley. You'd also want to see the moon's depressions and ice domes, which are up to a little more than a half-mile (1 kilometer) high.
Continue reading,
including link to article on how our Earth would be without its Moon
including link to article on how our Earth would be without its Moon


