Latest MCQs on Universe for Competitive Exams

251. 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.”

252. 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.

253. Which planet in the solar system has the highest mountain, Olympus Mons?
A) Mars
B) Earth
C) Venus
D) Mercury
Correct Answer: A) Mars
Explanation: Olympus Mons on Mars is the tallest volcano and mountain in the solar system.

254. What is the name of the first spacecraft to successfully land on the surface of Mars and transmit data?
A) Viking 1
B) Pathfinder
C) Curiosity
D) Opportunity
Correct Answer: A) Viking 1
Explanation: Viking 1 was the first spacecraft to land and send data from Mars.

255. Which planet is known for having the most eccentric orbit among the eight planets?
A) Mercury
B) Mars
C) Neptune
D) Uranus
Correct Answer: A) Mercury
Explanation: Mercury’s orbit is the most elliptical among the planets.

256. What is the name of the largest moon of Neptune?
A) Triton
B) Titan
C) Ganymede
D) Callisto
Correct Answer: A) Triton
Explanation: Triton is Neptune’s largest moon.

257. Which planet is known as the “Morning Star” due to its bright appearance before sunrise?
A) Venus
B) Mars
C) Mercury
D) Jupiter
Correct Answer: A) Venus
Explanation: Venus is often visible before sunrise, earning the name “Morning Star”.

258. What is the name of the first artificial satellite to orbit the Sun?
A) Luna 1
B) Sputnik 2
C) Mariner 2
D) Voyager 1
Correct Answer: A) Luna 1
Explanation: Luna 1 was the first spacecraft to orbit the Sun.

259. Which planet has the thickest atmosphere in the solar system?
A) Venus
B) Jupiter
C) Saturn
D) Neptune
Correct Answer: A) Venus
Explanation: Venus has a dense, carbon dioxide-rich atmosphere.

260. What is the name of the first spacecraft to orbit Saturn?
A) Cassini
B) Voyager 2
C) Galileo
D) Pioneer 11
Correct Answer: A) Cassini
Explanation: Cassini orbited Saturn from 2004 to 2017.