Space and the solar system

Planets, the Sun, the Moon and space missions.

General Test6 questions
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Key facts

  • Eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
  • Jupiter is the largest planet; Mercury is the smallest and closest to the Sun.
  • Venus is the hottest planet; Mars is the “Red Planet”.
  • The Moon is Earth’s only natural satellite.
  • ISRO missions: Chandrayaan-1 (2008), Mangalyaan (Mars Orbiter Mission, 2013–14), Chandrayaan-3 (2023), Aditya-L1 (solar mission, 2023).

Practice questions

Which planet is known as the Red Planet?Easy
The largest planet in the solar system is:Easy
The planet closest to the Sun is:Easy
The hottest planet in the solar system is:Medium
India’s first solar observation mission is:Medium

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