Apollo 17 astronaut (IMAGE)

Okinawa Institute of Science and Technology (OIST) Graduate University

Apollo 17 astronaut

Caption

Until last week, Apollo 17 was the last time humans left low-earth orbit to visit the Moon. Several solar proton events occurred in the same year as Apollo 16 and 17; had these coincided, the astronauts would have been exposed to deadly radiation without protection.

Credit

NASA (Public domain)

Usage Restrictions

No restrictions.

License

Public Domain

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