The record of the longest space journey by a woman

The American astronaut Christina Koch has returned to Earth after a 328-day mission on the International Space Station (ISS) that has made her the woman who has made the longest space journey. But this is not the only milestone that has marked this trip. Last October Christina Koch and Jessica Meir made the first spacewalk for women only. 

Space reactors

The cooling system of a nuclear reactor with heat pipes can be used during space flight.

A group of researchers from LANL, NASA and NSTec (USA) established the use of heat pipes for cooling a small nuclear reactor that drives the Sterling engine. The system can be used as a dependable energy source for space vehicles.