Selected MCQ

Current Question
Which mission was the first to land humans on the Moon successfully?
  • A. Apollo 11
  • B. Apollo 13
  • C. Mercury-Redstone
  • D. Gemini 4
Correct Answer: A
Explanation:
Apollo 11 in 1969 was the first crewed Moon landing.
Related Question 1
Which cryptocurrency uses a blockchain but was the first to implement smart contracts?
  • A. Bitcoin
  • B. Ethereum
  • C. Litecoin
  • D. Ripple
Correct Answer: B
Explanation:
Ethereum introduced smart contracts on the blockchain.
Related Question 2
Which space agency launched the Gaia mission to map the Milky Way?
  • A. NASA
  • B. ESA
  • C. Roscosmos
  • D. JAXA
Correct Answer: B
Explanation:
The European Space Agency (ESA) launched Gaia to create a precise 3D star map.
Related Question 3
Which Mars rover first identified definitive evidence of past water on Mars?
  • A. Spirit
  • B. Opportunity
  • C. Curiosity
  • D. Sojourner
Correct Answer: B
Explanation:
Opportunity found strong evidence (hematite spheres) of ancient water on Mars.
Related Question 4
Which celestial event occurs when the Moon passes directly between the Sun and Earth?
  • A. Total lunar eclipse
  • B. Solar eclipse
  • C. Meteor shower
  • D. Transit of Venus
Correct Answer: B
Explanation:
A solar eclipse happens when the Moon blocks the Sun as seen from Earth.
Related Question 5
Which space probe provided detailed images of Saturn's rings and moons?
  • A. Voyager 1
  • B. Hubble Telescope
  • C. Cassini
  • D. Sputnik
Correct Answer: C
Explanation:
Cassini orbited Saturn and studied its rings and moons in detail.