NASA astronauts Peggy Whitson and Jack Fischer are getting ready for an unscheduled spacewalk outside the International Space Station Tuesday, May 23, 2017.

Whitson, Expedition 51 commander, and Fischer, flight engineer, will substitute a essential pc relay field that failed May 20. The relay field, often known as a multiplexer-demultiplexer (MDM), is one in every of two items that regulate the operation of radiators, photo voltaic arrays and cooling loops. They additionally route instructions to different very important station programs.

During the spacewalk the reside digital camera recorded not solely the astronaut’s actions outside the ISS but additionally two unknown flying objects. Is it only a reflection or the objects could have been UFOs?