Meaning of Exoplanet ,Rogue planet, Exomoon - Science & Technology

Q.  Which of the following statements are correct?

1. Exoplanet  orbits a star other than the Sun.
2. Rogue planet orbits the galaxy directly.
3. An exomoon, is a natural satellite that orbits an exoplanet.

- Published on 12 Aug 15

a. 1,2
b. 2,3
c. 1,3
d. All

ANSWER: All
 
The discovery of exoplanets has intensified interest in the search for extraterrestrial life, particularly for those that orbit in the host star's habitable zone where it is possible for liquid water (and therefore life) to exist on the surface. NASA astronomers have discovered the nearest rocky planet outside the solar system which is larger than earth.

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