The astronaut heard the noise during a mission in 2003, a sound that could not be explained at the time, and neither had it been solved now.
Space on MSN
Watch How NASA Sends Communicates With Voyager 2
NASA’s Webb telescope gets a never-before-seen look at how moons form on exoplanets Sham marriages, elder 'exploitation,' ...
Perseverance represents more than a machine. It is a proxy extending humanity’s senses across millions of miles to an alien ...
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