Essay On If Life Exist On Other Planets

Serves as a model for what are known as water-world extrasolar planets with a deep liquid ocean that doesn’t contact the silicate underneath due to a layer of ice.

Since Europa is Jupiter’s moon, it is orbiting Jupiter. Europa is made out of silicate rock and is grooved out with cracks and streaks. The crust of this moon is frozen which is covered in ice. The density is 3.01 g/cm3 which would

and a large amount of ice, its density is not compromised. This moon is almost as large as

Until space industry can devise a transportation system faster than light-speed, humanity has no hope of ever exploring this planet. On more auspicious terms for discovering a habitable world, one does not need to look farther than our own solar system. Cassini, an orbiter of Saturn, discovered that one of its moons, dubbed as Enceladus, has liquid water beneath its icy crust. Furthermore, a rocky core at the bottom of the ocean confirms that the liquid water may have the essential minerals and nutrients to provide microbial organisms with a sustainable food

In Orson Scott card’s book, Ender's’ game, The novel takes place in a futuristic world where aliens attempted to take over the earth and a young boy named Ender is chosen to lead earth's army to victory. So far mars has been the most significant candidate for extraterrestrial life in our solar system. For a planet to have a suitable environment for life it must have liquid water, oxygen, carbon, atmosphere, heat/warmth, nutrients/food. One of the four moons that orbited Jupiter named Europa was recently expected to have the essentials for life. The moon Europa has strong tidal heat which could keep water in liquid form beneath its layer of ice. Although life on Europa is a small chance there's is one more option which is the largest moon that

The subsurface global water ocean on Enceledus is the most significant condition for creating life. The process of form liquid water needs to back to the origin where there is nothing but nebula, some elements start to gathered together because of the force. Since the core started heating up by elements shrinking, the fussion occured which make the Inner planet become rocky and gassy

This “Ice Giant” sure stands for its name as the 7th farthest planet from the Sun and its cold atmosphere brought about by the gases found here, hydrogen, helium and a little bit of methane. Uranus falls under the gas giant category along with neighbors Neptune and Saturn. This planet is composed of rock materials and various ices and is very similar to the cores of Saturn and Jupiter. Since the thick, blue-colored atmosphere covers the planet itself, scientists suggest that under the atmosphere is a hot, slushy ocean of water, ammonia, and methane thousands of mile deep right to a small, rocky core. Its blue color comes from the absorption of red light from the Sun by methane in the upper atmosphere but reflects blue light from the Sun back into space.

last ice age, it was thought that the deepest part of the ocean was made up of very salty, dense

The solar system was believed to be formed when a gas cloud and dust in space was disturbed by the explosion of the supernova. The explosion made space waves which squeezed in the cloud of the dust. The Jovian planets include Jupiter, Saturn, Uranus and Neptune. These planets surfaces are not solid. Jovian’s atmosphere in our solar system is mostly made of helium and hydrogen.

The Ice Giant, Uranus is the seventh planet from the Sun in our solar system and is very unique from the other planets. Discoveries of this ice giant will lead us to a better understanding of our universe. This planet is different because of its tilt, color and a somewhat unique surface. No other planets in our solar system have a significant tilt. In addition to the tilt, it also has odd color and a different surface, but why?

Despite Plutos dwarf planet status it still hosts several moons. Its biggest moon Charon is almost as big as Pluto so it was beleived to be a double planet. Also Pluto's moon Charon may have an ocean on it the gravitational force of Pluto to Charon strethces the moons insides warming it enough to possibly have a moon.

Ganymede is similar to Europa in that its surface is made of mainly ice, but it does have bits of rock here and there. Also like Europa, Ganymede is believed to have an ocean below its surface. The core is made of metallic iron while its middle layer is made of rock. In 1996, scientists discovered that Ganymede has a very thin oxygen atmosphere, but it is not thick enough to support life. With a surface temperature of -163 degrees Celsius, it would be a harsh environment to live in.

For a couple of our icy planets, scientists have theorized that we may not be able to land on our ice planets such as Europa and Enceladus. The most probable reason that we can’t land on these planets is because they would be to soft. The grains on top of the surfaces of these planets are about a fraction of a millimeter and are lighter than fresh snow. What this measures is only the surface so we don’t exactly know if it’s just the top surface or the whole planet. Naturally without more information, it wouldn’t be smart to attempt to land on either of these planets.

Right alongside the fifth and largest planet in our solar system, Jupiter, orbits a moon only about the same size as Earth’s moon. On this moon, is an icy surface that scientists are trying to uncover. Due to the presence of what they believe to be water, there is the possibility of life on this moon named Europa.

Europa is the sixth of Jupiter's moons and the fourth largest. Europa is named after a Phoenician princess who was abducted by Zeus and taken to the island of Crete to be his lover. Europa was discovered by Galileo Galilei and possibly Simon Marius in 1610 and is one of the four Galilean satellites. The others being: Io, Ganymede, and Callisto. Europa is very different from the other moons of Jupiter. Instead of a rocky, cratered surface like Callisto and Ganymede, it instead has a smooth outer surface of cracked ice. There are very few sign of craters on Europa. In fact, only three large craters have been found. This indicates that Europa's surface is very young and active. In photographs sent back by orbiters, the surface resembles sea ice on Earth. Astronomers believe that beneath this layer of ice may exist an ocean, kept liquid by the moon's internal heat. This liquid ocean could be as much as 30 miles deep. The existence of deep ocean vents on the ocean floor on Earth have led some scientists to speculate that there could be a possibility of life on Europa. Around these deep sea vents on Earth are life forms that do not need sunlight to survive. They instead feed on bacteria that get their nutrients from chemicals seeping up from the ocean floor. This process is known as chemosynthesis. Scientists believe that similar life forms could evolve on Europa if a liquid ocean does indeed exist beneath its frozen surface.