Research in Biological and Physical Sciences in Space (BPS) has enabled the United States to be a trailblazer for both human and robotic space exploration, while sparking a wealth of technological advances to help society.
The United States has an unprecedented opportunity to lead the way to the Moon and Mars, but to do so, the nation must also be at the forefront of innovation for science and technology in space. However, despite more experiments being performed in space than ever before, NASA’s BPS program is severely underfunded compared to investments made during the space shuttle era.
If the United States wants to maintain its leadership role for the next generation of space science and exploration, funding for BPS research will have to increase tenfold before the end of the decade. This level of funding is necessary to support a robust and resilient program that can meet the nation’s needs.
Prioritizing eleven key scientific questions, spanning three major themes of research in and about the space environment, will position the nation to travel and prosper in space sustainably, all while returning benefits to Earth.
Adapting to Space
Life in space operates differently than life on Earth. It is critical to understand how the space environment impacts human beings as well as the plants and microbes that will be part of future habitat systems.
Key Science Questions
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KEY SCIENCE QUESTIONSAdapting to Space
Living and Traveling in Space
Human exploration of the Moon and Mars will require longer-duration space missions. For these missions to be successful, it is important to understand how biological and hardware systems interact over the course of years, as well as how to derive resources to sustainably explore new places.
Key Science Questions
Learn more in Chapter 4
KEY SCIENCE QUESTIONSLiving and Traveling in Space
Probing Phenomena Hidden by Gravity or Terrestrial Limitations
Fundamental processes that are not observable on the Earth can be readily seen in spaceflight when gravity is removed from the equation. Space-based laboratories provide the opportunity for major science gains.
Key Science Questions
Learn more in Chapter 5
KEY SCIENCE QUESTIONSProbing Phenomena Hidden by Gravity or Terrestrial Limitations
The decadal survey recommends that NASA pursue dedicated research campaigns, funded through an increase in the BPS budget, to drive solutions to the key science questions above.
BLiSS (Bioregenerative Life Support Systems)
The BLiSS research campaign aims to develop the technologies and systems needed to create space environments that are sustainable for long periods of time independent from Earth. Goals include providing high-quality food, refreshing air and water, and processing waste.
MATRICES (Manufacturing mATeRials and proCEsses for Sustainability in Space)
The MATRICES research campaign aims to address how to make best use of a limited amount of resources on a long-duration space mission, including how to manufacture and repair habitats, materials, and technologies for sustainable exploration.
The report also presents a multi-agency initiative for probing the fabric of spacetime both within and beyond the solar system and a novel BPS Free Flyer concept for polar orbit to study the effects of gravitational forces and cosmic ray radiation exposure.
Thriving in Space identifies key scientific questions, priorities, and ambitious research campaigns that will enable human space exploration and transform our understanding of how the universe works over the next decade and beyond. The report provides a roadmap for increasing national investment in BPS research, from experiments to infrastructure to education. This is the second decadal survey for biological and physical sciences in space conducted by the National Academies, and like its predecessors, it will serve as a guide for scientists, policy makers, and agencies invested in the field.
The National Academies selected committee members in a process independent of sponsoring agencies after casting a wide net for participant recommendations. Members of the steering committee were selected to cover as fully as possible the scientific scope of the survey and to comprise as representative a group of experts as possible in terms of individual, institutional, and geographical demographics. National Academies policies governing potential conflicts of interest by steering committee and panel members were strictly enforced. In particular, broad and open-minded thinkers were sought out as opposed to advocates for individual missions or subfields.
Starting from an initial set of hundreds of community-submitted input papers and the past decade of published articles, three interdisciplinary panels of U.S. experts worked with the steering committee to establish the current state of knowledge and capabilities in BPS as a baseline of opportunity for research in the coming decade. The steering committee held public sessions over the course of 2+ years and received input from invited speakers from government, industry, and academia before reaching consensus.
The International Space Station has been a critical platform for BPS research. However, as the ISS moves towards retirement, it will be replaced by new capabilities within the next decade. Innovations such as advanced reusable rockets have reduced launch costs and opened up brand new opportunities for space exploration, including the development of commercial space platforms.
The report presents not only key science priorities, but also decision rules to assist NASA in broadening or downscaling the BPS research portfolio in the event funding or access to space varies from the expectations in the report.
This decadal survey was sponsored by the National Aeronautics and Space Administration (NASA).