Opportunity Information: Apply for 21 577
The National Science Foundation (NSF) funding opportunity titled "Grand Challenges in Integrative Geospace Sciences: Advancing National Space Weather Expertise and Research toward Societal Resilience" (also referred to as the ANSWERS solicitation; Funding Opportunity Number 21-577) is a discretionary research grant program focused on major, high-impact problems in solar and space physics and space weather. It is designed to support ambitious, collaborative efforts that can push the field beyond incremental progress by encouraging teams to tackle problems that require coordination across observations, theory, modeling, experimentation, computation, and education. In practical terms, NSF is looking for projects that treat space weather as a connected, end-to-end system rather than as isolated subtopics, with the broader aim of improving understanding and prediction of hazards that can affect modern technology and infrastructure.
A central theme of the solicitation is integrative geospace science: developing deep, transformative understanding of the coupled Sun-Earth system and how energy and matter flow from the Sun through interplanetary space and into Earths magnetosphere, ionosphere, and upper atmosphere, ultimately driving effects that can be felt at ground level (summarized in the call as impacts "from Sun to mud"). This framing emphasizes that societally relevant space weather outcomes do not come from a single region of space or a single physical process, but from interactions across multiple regions and scales, including solar drivers and terrestrial responses. The program is therefore oriented toward holistic, system-level progress that can strengthen national capabilities to anticipate and manage space weather risks.
The ANSWERS solicitation explicitly goes beyond the traditional boundaries of NSF AGSs Geospace Section programs. Rather than fitting neatly into one long-standing program area, it spans and integrates priorities that historically have been handled separately within Aeronomy (AER), Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR), Geospace Environment Modeling (GEM), Magnetospheric Physics (MAG), Solar Terrestrial Research (STR), and Solar, Heliospheric, and Interplanetary Environment (SHINE). By doing so, it is meant to incentivize proposals that cut across these communities and methods, for example by combining multi-instrument observations with new theory, data-assimilative or physics-based models, advanced computation, and experimental or campaign-style approaches, all tied together by a coherent plan to address a grand challenge in space weather science.
A notable requirement in the opportunity description is the emphasis on team science and workforce development alongside research outcomes. NSF signals that educational and forward-looking training components are not an afterthought, but part of the strategy to expand national expertise in space weather and related STEM areas. The intent is to build capacity in the community while also producing research advances, ultimately improving societys resilience to space weather hazards that can impact satellites, communications, navigation, power systems, aviation, and other technology-dependent sectors.
From a funding standpoint, this is a grant mechanism under CFDA 47.050 within the broad category of science and technology research and development. The opportunity listed an award ceiling of $2,500,000 per award and anticipated making around six awards. The solicitation was created on April 13, 2021, with an original closing date of August 23, 2021. Eligibility is described broadly as "Others" with additional eligibility details referenced in the full solicitation, indicating that prospective applicants would need to consult the official program text for specific institutional and partnership requirements.
Overall, ANSWERS is positioned as an NSF effort to catalyze large, interdisciplinary teams to solve difficult, high-consequence questions in the integrated Sun-Earth system, while simultaneously strengthening education and the space weather workforce. The expected payoff is both scientific (better understanding of coupled geospace processes) and societal (improved resilience through stronger national space weather expertise and, ultimately, better ability to anticipate and mitigate impacts).Apply for 21 577
- The National Science Foundation in the science and technology and other research and development sector is offering a public funding opportunity titled "Grand Challenges in Integrative Geospace Sciences: Advancing National Space Weather Expertise and Research toward Societal Resilience" and is now available to receive applicants.
- Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 47.050.
- This funding opportunity was created on Apr 13, 2021.
- Applicants must submit their applications by Aug 23, 2021. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
- Each selected applicant is eligible to receive up to $2,500,000.00 in funding.
- The number of recipients for this funding is limited to 6 candidate(s).
- Eligible applicants include: Others (see text field entitled Additional Information on Eligibility for clarification).
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FAQs: NSF "Grand Challenges in Integrative Geospace Sciences" (ANSWERS) Solicitation
What is the NSF ANSWERS funding opportunity?
The National Science Foundation (NSF) funding opportunity titled "Grand Challenges in Integrative Geospace Sciences: Advancing National Space Weather Expertise and Research toward Societal Resilience" (also called the ANSWERS solicitation; Funding Opportunity Number 21-577) is a discretionary research grant program focused on major, high-impact problems in solar and space physics and space weather.
What is the main goal of the ANSWERS solicitation?
The main goal is to support ambitious, collaborative projects that move beyond incremental progress by tackling grand-challenge problems in space weather science. The solicitation emphasizes holistic, system-level research aimed at improving understanding and prediction of space weather hazards so society can better anticipate and manage risks to modern technology and infrastructure.
What kinds of problems is NSF trying to fund through this program?
NSF is targeting major, high-impact problems in solar and space physics and space weather that require coordinated efforts across multiple approaches and communities. The solicitation is positioned for projects that can deliver transformative advances in understanding the coupled Sun-Earth system and its societally relevant impacts.
What does "integrative geospace science" mean in this solicitation?
In this solicitation, integrative geospace science means developing deep, transformative understanding of the coupled Sun-Earth system and how energy and matter flow from the Sun, through interplanetary space, into Earth's magnetosphere, ionosphere, and upper atmosphere, and ultimately to impacts at ground level. NSF summarizes this end-to-end view as impacts "from Sun to mud."
What does NSF mean by treating space weather as an "end-to-end system"?
It means proposals should not treat space weather as isolated subtopics. Instead, they should address how multiple regions and physical processes interact across scales, linking solar drivers to terrestrial responses in a connected framework that supports improved understanding and prediction of hazards.
Why does the solicitation emphasize the "Sun to mud" framing?
The "Sun to mud" framing highlights that societally relevant outcomes can depend on interactions across many regions of the Sun-Earth system, not just one part of the environment or one physical mechanism. The emphasis is on coupled processes that can translate space conditions into impacts that can be felt at ground level.
How is ANSWERS different from traditional NSF Geospace Section programs?
The solicitation explicitly goes beyond traditional boundaries of NSF AGS Geospace Section programs. Rather than fitting neatly within a single long-standing program area, it spans and integrates priorities that have often been handled separately across multiple communities and methods.
Which research communities and program areas does ANSWERS span?
ANSWERS spans and integrates priorities historically associated with Aeronomy (AER), Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR), Geospace Environment Modeling (GEM), Magnetospheric Physics (MAG), Solar Terrestrial Research (STR), and Solar, Heliospheric, and Interplanetary Environment (SHINE).
What types of approaches are encouraged in a competitive ANSWERS project?
The solicitation encourages coordinated approaches that can include multi-instrument observations, new theory, data-assimilative or physics-based modeling, advanced computation, experimentation, and campaign-style efforts. The key is that these elements should be integrated into a coherent plan to address a grand challenge in space weather science.
Is collaboration or team science required or emphasized?
Yes. A notable requirement is the emphasis on team science. NSF is looking for ambitious, collaborative efforts where coordination across observations, theory, modeling, experimentation, computation, and education is central to achieving the solicitation's goals.
Does the solicitation require education and workforce development components?
Education and forward-looking training components are strongly emphasized alongside research outcomes. NSF signals that workforce development is part of the strategy to expand national expertise in space weather and related STEM areas, not an optional add-on.
What societal impacts is this program trying to address?
The program is oriented toward improving understanding and prediction of space weather hazards that can affect modern technology and infrastructure. The solicitation specifically notes impacts to satellites, communications, navigation, power systems, aviation, and other technology-dependent sectors, with the broader goal of improving societal resilience.
What is the funding mechanism and CFDA number for this opportunity?
This is an NSF grant mechanism under CFDA 47.050, within the broad category of science and technology research and development.
What is the maximum award amount (award ceiling) mentioned for this opportunity?
The opportunity listed an award ceiling of $2,500,000 per award.
How many awards did NSF anticipate making under this solicitation?
The solicitation anticipated making around six awards.
When was the solicitation created and what was the original closing date?
The solicitation was created on April 13, 2021, with an original closing date of August 23, 2021.
Who is eligible to apply?
Eligibility is described broadly as "Others," with additional eligibility details referenced in the full solicitation. Prospective applicants would need to consult the official program text for specific institutional and partnership requirements.
What is NSF ultimately trying to achieve through ANSWERS?
NSF is positioning ANSWERS to catalyze large, interdisciplinary teams to solve difficult, high-consequence questions in the integrated Sun-Earth system, while also strengthening education and the space weather workforce. The expected payoff is both scientific (better understanding of coupled geospace processes) and societal (improved resilience through stronger national space weather expertise and better ability to anticipate and mitigate impacts).
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