Selected MCQ

Current Question
The Vera C. Rubin Observatory's primary mission is to survey the sky for studies of:
  • A. Solar system planets
  • B. Dark matter and dark energy
  • C. Nearby satellites
  • D. Intergalactic propulsion
Correct Answer: B
Explanation:
Rubin Observatory's wide-field survey is focused on mapping dark matter and dark energy through cosmic structure.
Related Question 1
In what year did the Vera C. Rubin Observatory, with its 8.4-meter telescope, see first light?
  • A. 2023
  • B. 2024
  • C. 2025
  • D. 2026
Correct Answer: C
Explanation:
It saw first light in the summer of 2025 after over a decade of construction.
Related Question 2
Approximately how much data does the Vera C. Rubin Observatory collect each night?
  • A. 20 gigabytes
  • B. 200 gigabytes
  • C. 20 terabytes
  • D. 200 terabytes
Correct Answer: C
Explanation:
The Rubin Observatory’s 3.2-gigapixel camera captures about 20 TB of data per night.
Related Question 3
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 4
What is the primary gas in the Martian atmosphere?
  • A. Nitrogen
  • B. Oxygen
  • C. Carbon dioxide
  • D. Argon
Correct Answer: C
Explanation:
Mars' atmosphere is about 95% carbon dioxide.
Related Question 5
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.