The First Untethered Spacewalk of All Time

The First Untethered Spacewalk of All Time
This is must be the most known picture in the Internet and in the whole world. But it so great that it will never get old hence my choice to post it.

Some history just in case. The pictures depict American astronaut Bruce McCandless II who became the first to make an untethered spacewalk thanks to nitrogen jet propelled backpack called the Manned Maneuvering Unit (MMU) in 1984.

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