Writing Your Response: Students need to use proper grammar and writing technique
ID: 293080 • Letter: W
Question
Writing Your Response:
Students need to use proper grammar and writing techniques. Responses should be complete, well thought out, and presented in a logical manner.
A minimum of one paragraph is required for this initial posting.
You are not required to support your post with references, but you are encouraged to include images, graphics, links to videos, and so on to create a more dynamic submission.
Your initial post should be submitted by Wednesday of this module and response comments posted by the module deadline.
Topic of Conversation:
Comets are time capsules containing primitive material left over from the epoch when the sun and its planets formed. After a decade-long journey chasing its target, the European Space Agency's Rosetta, carrying three NASA instruments, became the first spacecraft to orbit a comet. Rosetta's lander will obtain the first images taken from a comet's surface and will provide the first analysis of a comet's composition by drilling into the surface. Rosetta also will be the first spacecraft to witness at close proximity how a comet changes as it is subjected to the increasing intensity of the Sun's radiation. Observations will help scientists learn more about the origin and evolution of our solar system and the role comets may have played in seeding Earth with water, and perhaps even life.
Research 2-3 of the scientific goals of the Rosetta mission. Explain what science goals you choose, how they plan to achieve these goals, and the importance of the research.
Explanation / Answer
The space probe Rosetta along with its lander module Philae was launched in 2004 with an aim to study comet 67P/Churyumov–Gerasimenko (67P). The major scientific goals of Rosetta were:
1. Catch the comet 67P and take a complete inventory of the comet’s chemical, mineralogical, and isotopic composition
2. Observe comet's nucleus, its shape and dynamic properties.
3. Successfully complete first controlled landing on a comet by deploying Philae and detail the comet’s physical properties.
Rosetta reached the Planet in 2014 and started orbiting it. In the same year, Philae performed the first successful landing on the comet creating history. Subsequently, the spacecraft started contributing to our knowledge about the comet and hence the solar system by providing a comprehensive outlook of the comet's physical characteristics, composition, and behaviour. The information obtained will help the scientists to learn in great detail what are comets, how they work, and how they transform in their journey from the deep cold of space to the warmth between the orbits of Earth and Mars. In addition, Rosetta also used several instruments to study Venus and Mars during the flyby and also took measurements of two asteroids, Steins and Lutetia, that it will pass along the way to the comet.
Another major goal of this mission was to know more about the chemicals inside comet C-G. The scientists wanted Rosetta to detect and catalogue them. As the comet approaches the Sun, it will be subjected to more heat and UV light, as well as intense solar wind. Rosetta will observe C-G’s chemical reactions through this period. By analysing these details scientists can tell much about how and where the comet formed.
Rosetta also was aimed to give the best look yet at the structure and workings of a comet. Rosetta mission will help to deduce how the comet works as it transforms a small, quiet, asteroid-like object into an enormous, glowing, jet-spouting display. The purpose of all the effort is to understand not only about our origins on Earth but also how life came to earth and does comets have any role to play.
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