Everyday Science
NULL
Medium
Question
The ISS orbits Earth about once every?
A
60 minutes at an altitude of about 400 km
B
60 minutes at an altitude of about 500 km
C
90 minutes at an altitude of about 400 km
✓ Official correct answer
D
90 minutes at an altitude of about 500 km
Community credibility
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A
60 minutes at an altitude of about 400 km
No member explanations yet for this option.
B
60 minutes at an altitude of about 500 km
No member explanations yet for this option.
C
90 minutes at an altitude of about 400 km
No member explanations yet for this option.
D
90 minutes at an altitude of about 500 km
No member explanations yet for this option.
Explanation
ISS orbits roughly every 90 minutes at about 400 km altitude.
Hence the keyed answer is 90 minutes at an altitude of about 400 km.
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