Europa

==Europa is slightly smaller than earth’s moon. It has an icy surface. Europa is one of the smoothest objects in the solar system. There are very few craters on it. The surface is 20 to 180 million years old. The moon is an icy crust and has many dark streaks crossing it. One hypothesis states that the lines were produced by volcanic water eruptions when the crust opened to warmer layers beneath. Europa has a tenuous atmosphere. It is composed of molecular oxygen. Life may exist in Europa's under-ice ocean, perhaps subsisting in an environment similar to Earth's ocean. ==  [|http://en.wikipedia.org/wiki/Europa_(moon)] http://www.planetary.org/programs/projects/explore_europa/update_12142005.html





What we know about Europa is that it is composed of oxygen. It may hold life. The surface of Europa is icy. There is a thick layer of water under the ice. Europa is 20 to 180 million years old. It is very cold on Europa, but we are not sure of the temperature. Europa has few craters and is still an active moon. It is one of Jupiter's many moons. It is small in size and has a smooth surface. Europa is smaller than the Earth's moon.


What are the dark streaks? The dark streaks are from a series of volcanic eruptions. ===<span style="color: rgb(35, 173, 225)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Times New Roman',Times,serif; color: rgb(81, 18, 206)">        === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(91, 213, 236)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(49, 172, 227)"><span style="color: rgb(35, 173, 225)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Times New Roman',Times,serif">        === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(49, 172, 227)"><span style="color: rgb(35, 173, 225)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(94, 8, 74)">What is in the ice? The ice has icy slush and debris in it. What is the core like? No one knows for sure, but scientist think it has a a core made of iron and nickel. === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(49, 172, 227)"><span style="color: rgb(35, 173, 225)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Times New Roman',Times,serif">       === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(49, 172, 227)"><span style="color: rgb(35, 173, 225)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Times New Roman',Times,serif; color: rgb(237, 7, 202)">Are there any probes on Europa? The voyagers (1 and 2) got the first images showing details of Europa's surface. ===

===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Times New Roman',Times,serif"> Where did it get its name? It's named after mythological characters who have relationship to Zeus. http://nssdc.gsfc.nasa.gov/planetary/ice/ice_europa.html     === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"><span style="font-family: 'Times New Roman',Times,serif"> Could we live there? No it is all ice on the outside and even some on the inside. ===

===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"> What is the temperature? The daytime temperature is -148° (C) Celsius and the nighttime temperature is -188° (C) Celsius. ===

===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif">What does the atmosphere contain? It contains oxygen. Of all the moons in the solar system, five others have an atmosphere. The oxygen is from sunlight and charged particles hitting the icy surface creating water vapor. ===

===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif">It then is oxygen.Who found it? Europa was discovered by Galileo and Marius in 1610.[|http://www.nineplanets.org/europa.html]    === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif">    === ===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif"> Have we ever been there? NASA has never sent anyone up but we had voyagers 1 and 2 get pictures of Europa.How thick is the crust? ===

===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif">The surface crust could be only a few kilometers thick. [|http://nssdc.gsfc.nasa.gov/planetary/ice/ice_europa.htm]    ===

===<span style="font-family: 'Comic Sans MS',cursive; color: rgb(255, 0, 111)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(183, 16, 173)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(184, 20, 158)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(20, 85, 255)"><span style="font-family: 'Times New Roman',Times,serif">How far away is Europa Earth? The distant varies because Earth and Europa orbit on the opposite sides of the sun until one point where they are on the same side. Even when they are on the same side they are about 600 million kilometers apart.http://wiki.answers.com/Q/How_far_is_Europa_from_Earth    === The picture shows a closer view of Europa's surface taken by the Galileo spacecraft. > http://www2.jpl.nasa.gov/galileo/callisto/P48127_full.jpg http://www.jpl.nasa.gov/galileo/ganymede/p47906.html




 * <span style="font-family: 'Comic Sans MS',cursive; color: rgb(235, 74, 0)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(253, 110, 23)">1. How is Europa different from our moon? Europa is smaller than our moon, covered in ice, we cant land on it. Few craters not many like earth. It came from Jupiter not earth. May have life. Still active.

2. What were the circumstances of its discovery? The voyager discovered it.

3. What makes scientists believe that Europa is covered with ice and water? The pictures from the voyager, and it is still active which means it has water. The water which erupts and creates the veins which make the streaks.

4. Why do scientists believe there is life on Europa? They believe it is there because of the little atmosphere, and the signs of the frozen ice. There may be water below the ice that is still active and all life exists form water.

5. When is NASA going to Europa to find out if there is an ocean under the layer of ice? The earliest launch will be in 2035. **<span style="font-family: 'Comic Sans MS',cursive; color: rgb(235, 74, 0)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(253, 110, 23)"> <span style="font-family: 'Comic Sans MS',cursive; color: rgb(235, 74, 0)"><span style="font-family: 'Comic Sans MS',cursive; color: rgb(253, 110, 23)">