Dr. Oliver Ullrich (left) from the University of Zurich and Dr. Howard Levine of NASA's Kennedy Space Center stood in the Space Station Processing Facility on Dec. 18, 2018. NASA recently signed a Space Act Agreement with the university, which is located in Switzerland, to collaborate on biological research. The team is studying gene expression in altered gravity.

From left to right: Dr. Oliver Ullrich from the University of Zurich, Dr. Ye Zhang and Dr. Howard Levine of NASA's Kennedy Space Center, and Dr. Cora Thiel of the University of Zurich stood in the Space Station Processing Facility on Dec. 18, 2018. NASA recently signed a Space Act Agreement with the university, which is located in Switzerland, to collaborate on biological research. The team is studying gene expression in altered gravity.

From left to right: Dr. Oliver Ullrich from the University of Zurich, Dr. Ye Zhang and Dr. Howard Levine of NASA's Kennedy Space Center, and Dr. Cora Thiel of the University of Zurich stood in the Space Station Processing Facility on Dec. 18, 2018. NASA recently signed a Space Act Agreement with the university, which is located in Switzerland, to collaborate on biological research. The team is studying gene expression in altered gravity.

NASA Administrator Charles Bolden, left, welcomes Lithuania's Minister of Economy Evaldas Gustas to NASA Headquarters to discuss potential collaborative space activities between NASA and the Republic of Lithuania, Tuesday, Feb. 18, 2014 in Washington.