We have already explored beyond the earth to see if the other planets have sustained life in the past or if they can sustain life in the future. We have …show more content…
Astronomers and scientists believe that Venus once had water, but due to the atmosphere and heat it evaporated the water. Then there is Mars, which scientists believe held life at one point in time. Due to the canals, which was used as evidence to prove at one point there was intelligent life on Mars to make such things. While Mars may have been able to support life in the past there is no new evidence that it holds life now or that it will in the future. Mars’ atmosphere is 1% as dense as Earth’s, which makes it difficult to hold liquid water on Mar’s surface. Furthermore, Jupiter has 66 moons, which are pretty small. Of the 66 moons there are four large moons, known as the Galilean moons. Which scientists are intrigued by because they may have environments that can support life. Lo, Ganymede, and Europa are all in a resonant orbit with one another. For every one orbit that Ganymede makes around Jupiter,
Lo makes four, and Europa makes two. As a result of this kind of orbit it causes Lo to be very active. For example, the amount of active volcanoes has turned Lo into a dry planet. Making …show more content…
Europa has a thick layer of ice with saltwater oceans underneath. The oceans remain liquid due to tidal heating. This replicates “the underground lakes in Antarctica that are being explored and contain life”(“Life In Our Solar System”). Which means it could probably sustain life in the future. Ganymede is the largest of the moons in the entire solar system. Which also has an icy surface with saltwater oceans, but is kept liquid by a liquid iron core instead of tidal heating. It also has a very thin atmosphere. The last of the four
Galilean moons is Callisto. Which is the fourth moon away from Jupiter. Callisto also has an icy surface with salt water below. The water likely contains ammonia and salts, which keep