space hard MCQ

The NEO Surveyor mission will detect potentially hazardous asteroids using which wavelength?

  1. Visible
  2. Infrared
  3. Ultraviolet
  4. Radio

Answer: Infrared

NEO Surveyor uses infrared detectors to find dark asteroids missed by optical surveys, identifying PHAs >140 m within 5 years of launch.

Topic Space Missions - Planetary Defense
Exam Relevance UPSC Prelims, General Science