Web Desk(December 15, 2017): NASA astronaut Randy Bresnik, commander of Expedition 53, returned to Earth from the International Space Station with the expedition’s two flight engineers, cosmonaut Sergey Ryazanskiy of Roscosmos and Italian astronaut Paolo Nespoli of the European Space Agency.
It is a frigid 10 degrees Fahrenheit on the ground, with the wind chill making it feel like 5 degrees below zero,” NASA announced at touchdown.
During their time on the space station, the group managed hundreds of science experiments in a variety of fields, including planetary science, physics, microbiology, biotechnology and genetics.
Several experiments had scientists look at microgravity’s impact on human health and disease, including the effects on antibiotic resistance of E. coli. The crew also grew larger versions of a protein linked to Parkinson’s disease.
The three also saw several cargo ships come and go. They helped bring fresh supplies and new science experiments on the station, while offloading completed experiments and spent supplies to be returned to Earth.
Bresnik conducted three spacewalks while aboard ISS, during which he assisted in repairs to the space station’s robotic arm, Canadarm2.
Ryazanskiy also participated in a spacewalk, helping his fellow cosmonaut Fyodor Yurchikhin release several nanosatellites.
Bresnik has now completed two stints aboard the space station, logging 150 days in space. Ryazanskiy has also executed two expeditions, but has spent 306 days in space. Nespoli has logged 313 days in space during three flights.
The new crew members are scheduled to launch from Baikonur, Kazakhstan, on December 17.