Latest MCQs on Universe for Competitive Exams

281. Which planet has the slowest orbital speed around the Sun?
A) Neptune
B) Uranus
C) Saturn
D) Jupiter
Correct Answer: A) Neptune
Explanation: Neptune, being the farthest, moves slowest in its orbit.

282. What is the name of the first spacecraft to orbit Mars?
A) Mariner 9
B) Viking 1
C) Mars Odyssey
D) Mars Express
Correct Answer: A) Mariner 9
Explanation: Mariner 9 was the first spacecraft to orbit Mars.

283. Which planet is known for its “blue spot” storm?
A) Neptune
B) Uranus
C) Jupiter
D) Saturn
Correct Answer: A) Neptune
Explanation: Neptune’s Great Dark Spot is sometimes called the “blue spot.”

284. What is the name of the first spacecraft to orbit Venus?
A) Venera 9
B) Magellan
C) Mariner 2
D) Akatsuki
Correct Answer: A) Venera 9
Explanation: Venera 9 was the first spacecraft to orbit Venus.

285. Which planet has the highest escape velocity?
A) Jupiter
B) Saturn
C) Neptune
D) Uranus
Correct Answer: A) Jupiter
Explanation: Jupiter’s escape velocity is the highest in the solar system.

286. What is the name of the first spacecraft to land on the Moon’s far side?
A) Chang’e 4
B) Luna 2
C) Surveyor 1
D) Apollo 11
Correct Answer: A) Chang’e 4
Explanation: Chang’e 4 landed on the far side of the Moon in 2019.

287. Which planet is known for its “shepherd moons” that help maintain its rings?
A) Saturn
B) Jupiter
C) Uranus
D) Neptune
Correct Answer: A) Saturn
Explanation: Saturn’s shepherd moons help keep its rings in place.

288. What is the name of the first spacecraft to orbit Mercury?
A) Messenger
B) Mariner 10
C) BepiColombo
D) Pioneer 11
Correct Answer: A) Messenger
Explanation: Messenger orbited Mercury from 2011 to 2015.

289. Which planet has the most similar length of day to Earth?
A) Mars
B) Venus
C) Mercury
D) Jupiter
Correct Answer: A) Mars
Explanation: A day on Mars is about 24 hours and 37 minutes.

290. What is the name of the first spacecraft to land on Venus and transmit data?
A) Venera 7
B) Mariner 2
C) Luna 9
D) Surveyor 1
Correct Answer: A) Venera 7
Explanation: Venera 7 was the first to land and send data from Venus.