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Questions tagged [europa]

Questions regarding Europa, a moon of Jupiter with an orbital period of 3.55 days, which has a thin atmosphere primarily of oxygen and whose surface is made up of ice. It is the smallest of the four Galilean satellites of Jupiter.

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16 votes
2 answers
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Space travel using constant acceleration drive: Earth to Europa

Long story short: I'm writing sci-fi and taking my protagonist to Europa. He's got 2 weeks to one month to get there from Earth, give or take a few days. That sounds, of course, preposterous in this ...
adamholtwrites's user avatar
3 votes
1 answer
3k views

Have there been any determinations of the water pressure in Europa's ocean just below the ice?

In this Astronomy SE answer to How can "Geysers" on Europa reach heights of 100km? there is discussion of the possible role of pressure at the top of Europa's ocean in the ability of the ...
uhoh's user avatar
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37 votes
2 answers
6k views

Can a spaceship land on an icy body using retropropulsion? wouldn't the ice melt?

Can a spaceship, say Musk's BFR, actually land on the ice surface of Titan, or Europa, or Enceladus? It seems to me that the hot exhaust gases would make the surface melt where the rocket is trying to ...
thomasjestin's user avatar
17 votes
2 answers
3k views

What would ice-skating be like on Europa?

Jovian moon Europa's icy surface is pretty flat and let's say astronauts would wear ice skates attached to their spacesuits, what would ice-skating be like on Europa? Due to Europa's very low gravity (...
LoveForChrist's user avatar
17 votes
4 answers
5k views

Why aren't there any robotic missions on Europa or Enceladus?

As per Space.com's Methane in plume of Saturn's moon Enceladus could be sign of alien life, studies suggest that Enceladus and Europa are the two most promising solar-system bodies on or in which to ...
user0193's user avatar
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14 votes
3 answers
805 views

Would a Europa lander need radiation shielding similar to Juno?

Jupiter has a very intense radiation field, and thus spacecraft going to study it need heavy radiation shielding, such as Juno's radiation vault. This protects the delicate instruments and ...
Phiteros's user avatar
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13 votes
1 answer
1k views

Could Jupiter's tidal forces be used to generate energy?

Let's say we have a colony on Europa (or any other Jovian moon really). Jupiter exerts a lot of tidal forces on its satellites. Could this force be used to generate energy for our colonists?
System Down's user avatar
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11 votes
1 answer
2k views

What causes the cracks on Europa to form?

Europa, moon of Jupiter, has a number of large cracks, as seen below. The cracks appear to be associated with a brownish color, while the base surface appears to be a whitish color. What is the cause ...
PearsonArtPhoto's user avatar
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10 votes
1 answer
1k views

Is the far side of the tidally locked Europa moon safe from Jupiter's radiation?

From Wikipedia's Europa (moon); Orbit and rotation: Europa orbits Jupiter in just over three and a half days, with an orbital radius of about 670,900 km....and is tidally locked to Jupiter, with ...
drandrul's user avatar
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9 votes
2 answers
415 views

Do you need a "wire" on a Europa submarine to phone home?

In regards to Europa, what are the limitations regarding current data transmission technology. Say we were to have an orbiter circling Jupiter, a lander on the surface of Europa and a "swimmer" [...
MarsOneOrBust's user avatar
5 votes
1 answer
302 views

How does not orbiting Europa maximize Clippers coverage of Europa for a given radiation dose?

According to the BBC's Nasa confirms ocean moon mission: Europa's orbital path takes it deep into belts of intense radiation that surround the giant planet. This radiation fries spacecraft ...
uhoh's user avatar
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4 votes
2 answers
463 views

A certain way to blow up Europa, what is wrong with this suggestion?

To explore the sea under the ice in Europa, a probe with a nucleo-thermal tip has been suggested. Now as this probe melts its way downward, imagine we are pumping out the melted water. This should ...
user2277550's user avatar
2 votes
2 answers
379 views

How would a robotic landing on an icy moon like Europa differ from landings on the Moon, Mars, Venus, Jupiter, Titan, asteroids, comets?

Europa has 13½% of Earth's surface gravity and no atmosphere, so an optimal landing on Europa might be similar to a classic propulsive Lunar landing. But with up to an hour communication time lag, ...
LocalFluff's user avatar