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Steven Platts portrait

Steven H. Platts

Chief Scientist, Human Research Program

Steven H. Platts guides scientific content for NASA’s Human Research Program (HRP). As the program’s chief scientist, he ensures scientific integrity, ethics, and quality.

Platts joined NASA’s Johnson Space Center in Houston in 2003 as a senior scientist in the Cardiovascular Physiology Laboratory, later becoming laboratory director. He led many experiments for the lab, including several that ran on the space shuttle, the International Space Station, bed rest platforms, and parabolic flights. 

Platts moved into the role of an increment scientist in 2013 and later as an element scientist for the space station’s Medical Projects element. He joined HRP leadership as deputy chief scientist in 2018.

Platts graduated with a bachelor of science in Zoology from the University of Massachusetts, Amherst in 1987. He earned a doctor in philosophy in Cardiovascular Physiology from Texas A&M University Health Science Center in 2000. Platts went to the University of Virginia for his postdoctoral fellowship under the guidance of Dr. Brian Duling. 

Human Research Program Leadership

Karen Pickering portrait

Deputy Director

Charles Lloyd portrait

Associate Director for Strategic Planning and Oversight

Steven Platts portrait

Chief Scientist

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Acting Deputy Chief Scientist

Kristin Fabre portrait

Deputy Chief Scientist

Jancy C. McPhee portrait

Associate Chief Scientist

Nancy Fleming

Technical Assistant

Baraquiel Reyna portrait

Manager of the Science Integration Office

Carrol Mullenax portriat

Manager of the Program Planning and Control Office