space medium Fill in the Blank

The first interplanetary probe to visit Mercury was _______.

  1. MESSENGER
  2. Mariner 10
  3. BepiColombo
  4. Pioneer 11

Answer: Mariner 10

Mariner 10 conducted three flybys of Mercury in 1974-75, mapping ~45% of its surface and discovering its magnetic field.

Topic Space History
Exam Relevance General Knowledge for Banking/SSC