space hard MCQ

Which space telescope discovered the first confirmed exoplanet orbiting a sun-like star (51 Pegasi b)?

  1. Hubble
  2. Kepler
  3. Ground-based ELODIE spectrograph
  4. TESS

Answer: Ground-based ELODIE spectrograph

51 Pegasi b was discovered in 1995 using radial velocity method with ground-based ELODIE spectrograph at Observatoire de Haute-Provence, not a space telescope. Note: Question tests precision—no space telescope made this discovery.

Topic Space Missions - International
Exam Relevance UPSC Prelims, General Science
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