Selected MCQ

Current Question
New research suggests the Milky Way and Andromeda galaxies will:
  • A. Merge in exactly 4 billion years
  • B. Have only about a 50% chance of colliding
  • C. Never interact due to cosmic expansion
  • D. Collide in 10 million years
Correct Answer: B
Explanation:
Accounting for additional gravitational influences, there's roughly a 50-50 chance they will collide in the future.
Related Question 1
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 2
Which space telescope is optimized for infrared observations of early galaxies?
  • A. Hubble Space Telescope
  • B. James Webb Space Telescope
  • C. Chandra X-ray Observatory
  • D. Spitzer Space Telescope
Correct Answer: B
Explanation:
JWST is optimized for infrared light, allowing observations of early-universe galaxies.
Related Question 3
Recent data from the Dark Energy Spectroscopic Instrument (DESI) suggests that dark energy:
  • A. Is constant over time
  • B. Is weakening over time
  • C. Has been proven not to exist
  • D. Is stronger than gravity
Correct Answer: B
Explanation:
DESI findings indicate dark energy's strength appears to have decreased in the last few billion years.