Selected MCQ

Current Question
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 1
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 2
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 3
What is a light-year a measure of?
  • A. Time
  • B. Mass
  • C. Distance
  • D. Brightness
Correct Answer: C
Explanation:
A light-year is the distance light travels in one year.
Related Question 4
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 5
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.