The International Sun-Earth Explorer Cometary Explorer (ISEE-3 / ICE) - launched in 1978 - makes its closest approach to Earth in August 2014.
Probe Launched In 1978 Coming Close To Home - But We Can't Talk To It | Orbit Diagram
SPACE.com - 30 Apr 2014 20:53
The International Sun-Earth Explorer Cometary Explorer (ISEE-3 / ICE) - launched in 1978 - makes its closest approach to Earth in August 2014.
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