The European Space Agency (ESA) successfully landed a spacecraft on a

The European Space Agency (ESA) successfully landed a spacecraft on a speeding comet that lies 310 million miles away from Earth. As a result, the scientists may find out

the age of the Sun

the age of the Universe

new fundamental atomic particles

the role of the comets in bringing organic matter and water to Earth

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UPSC NDA-1 – 2015

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The European Space Agency’s (ESA) Rosetta mission, which included the Philae lander, successfully landed on comet 67P/Churyumov–Gerasimenko in November 2014. Comets are believed to be pristine remnants from the formation of the solar system, preserving material from that era. A major scientific objective of studying comets is to understand their composition, including water and organic molecules, and their potential role in delivering these crucial building blocks to early Earth, which could have been significant for the origin of life.

Comet missions like Rosetta aim to study the composition of comets to understand the early solar system and their potential role in delivering water and organic matter to Earth.

The Rosetta mission orbited the comet for over two years, studying it extensively, while Philae provided data from the surface, although its power source was limited due to landing in a shaded location.

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