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International Edition Winners 2011: Romania, Target 2, Grade 7-8

International Edition Winners 2011: Romania, Target 2, Grade 7-8

Teodora Ninu, Sofia Nitoi and Alexandra Radu
Rhea and Titan
Rhea and Titan
Teodora Ninu
Sofia Nitoi
Alexandra Radu

7th Grade
Tudor Vianu National High School of Computer Science
Bucharest, Romania

Teacher: Ioana Stoica

"From a scientific point of view, target 2 - Rhea and Titan - evinces the most potential for investigation mean. On one hand, the possible origins of life on Terra can be examined with the help of the glaciated, early-Earth conditions perceived on Titan. On the other hand, Rhea is a frozen body surrounded by puzzles such as the existence of rings or of its own weight.

Titan is, without a doubt, Saturn's most mysterious moon. The moon's surface, being obstructed from view, it's wrapped in an orange haze consisting of several hydrocarbons. However, Cassini spacecraft is now capable of penetrating this smog and reveal the wonders beneath, with the aid of the revolutionary technology. The most surprising fact is that this faraway moon holds a weird resemblance to Earth in its previous years. Having indications of erosion due to flowing water, it is a sphere of rock and ice. There are lots of lakes of liquid methane and ethane which, once in a while, collect rain from clouds as water does on Terra. Furthermore, there is also evidence of volcanoes that spew liquid water. Titan is one of the places most potentially populated by extraterrestrial life, which makes the scientists anxious to investigate.

Interesting geological features have been noticed on Rhea by scientists. They have found that Rhea's surface has various physical characteristics by using Cassini's images.

One part of Rhea has vivid surface, airy markings, while its other part has numerous wide craters. This signifies that a major resurfacing may have occurred during Rhea's development.

Rhea should also be our main focus due to its enigmatic mass in addition to its astonishingly airy weight that is uncanny for a moon. Scientists are led to consider that this moon consists generally of ice, which is perceivable owing to the unusual fact that the temperature on Rhea varies from –281°F to –364°F even if it has no identifiable atmosphere.

NASA's Cassini spacecraft discovered indications of matter orbiting Rhea. If this matter is really a ring, then Rhea may be the first moon ever to have rings.

While notable strides have been made, there is more to be collected from this celestial wonder. Analyzing Rhea and Titan is a critical step in unlocking the many paradoxes of the known Universe as well as the origins of Earth."