Two American astronauts began on Monday the first of two spacewalks to install a permanent spare closet on the orbiting International Space Station and also to bottle some outer space for Japan.
The unusual project is part of a team effort with the Japan Aerospace Exploration Agency, JAXA, to open up a metal cylinder that has been signed by other astronauts, and bring it back for public display.
The so-called "Message in a Bottle" experiment, in which they will "expose a metal canister to capture the vacuum of space," is planned for the end of the six-hour spacewalk, NASA said.
In the meantime, astronauts Steve Bowen and Alvin Drew set about taking care of some more technical matters, by attaching a new extension power cable for backup purposes between the Unity node and the Tranquility module.
Read the rest of the story: US astronauts to ‘bottle’ space for Japan.