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SSC CHSL 2023 PYQ — Question 29

SSC CHSL - 13 March 2023 - Shift 2 • General Awareness • Q29

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Each orbit of International Space Station (ISS) takes ______ minutes.

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Correct answer: C

Explanation

The correct answer is option 3 i.e. 90 – 93.

The International Space Station (ISS) orbits the Earth every 90 to 93 minutes, traveling at a speed of around 28,000 km/h (17,500 mph). This rapid orbit allows the ISS to circle the Earth about 16 times a day, completing a full orbit approximately every hour and a half.

Key Points:

  • The ISS orbits at an average altitude of about 400 kilometers (248 miles) from the Earth's surface.

  • Despite being in space, the ISS experiences some atmospheric drag, which causes its orbit to gradually decay. Periodic boosts are required to maintain its altitude.

  • The fast orbit means astronauts aboard the ISS witness sunrise and sunset every 45 minutes.

  • This quick orbit helps in performing various experiments in microgravity and offers a unique perspective of Earth from space.

In summary, the ISS's orbit duration of 90 to 93 minutes plays a crucial role in its scientific and operational activities.