The Astronomical Sciences Technologies and Instrumentation (ATI) Program: Fueling Ground-Based Astronomy’s Next Frontier

The National Science Foundation’s (NSF) Astronomical Sciences Technologies and Instrumentation (ATI) program is poised to significantly impact the future of ground-based astronomy by funding innovative research and development in cutting-edge technologies and instruments. This program actively seeks to push the boundaries of astronomical observation, supporting projects that may carry substantial technical risk but hold the promise of transformative scientific discovery. The ATI program’s commitment to fostering advancements across the electromagnetic spectrum, from optical to radio wavebands, underscores its critical role in enabling astronomers to explore the universe with unprecedented precision and capability.

Program Overview and Objectives

At its core, the ATI program is designed to equip the U.S. astronomical community with the next generation of tools for scientific inquiry. It operates on the principle of supporting both individual investigator-led and collaborative research endeavors focused on the development of novel technologies and instrumentation. These advancements are specifically targeted for application in ground-based observatories, aiming to overcome limitations inherent in current observational capabilities. The program is not merely about incremental improvements; it actively encourages the pursuit of innovative and potentially groundbreaking solutions, even those that are considered high-risk from a technical standpoint.

The scope of ATI-supported projects is broad, encompassing a range of critical areas. These include:

• Advanced Technology Development: Funding for the creation of entirely new technological concepts and their subsequent maturation.
• Concept Feasibility Studies: Early-stage research to validate the viability and potential of novel technological ideas.
• Specialized Instrumentation: The development of bespoke instruments designed to facilitate observations that are currently difficult or impossible to achieve with existing means.

Proposals submitted to the ATI program can involve the development of hardware, software, or analytical methodologies. The overarching goal is to enable new types of astronomical observations that will lead to significant scientific breakthroughs. A key metric for the program’s success is the subsequent accessibility of the developed technologies and instrumentation to the broader U.S. astronomical community, fostering a collaborative and progressive research environment. To facilitate this, an annual Principal Investigators (PI) meeting is scheduled to ensure the dissemination of knowledge and best practices among funded research efforts.

Anticipated Competitiveness and Guidance for Fiscal Year 2027

The NSF has flagged the ATI program as anticipated to be "especially competitive" in Fiscal Year 2027. This projection suggests a high volume of proposals and a discerning review process. While specific details of this increased competition are not elaborated upon, it serves as a crucial signal to potential applicants. Proposers are strongly advised to meticulously align their submissions with the program’s stated objectives and to clearly articulate the innovative nature and potential impact of their proposed work. This heightened competition underscores the importance of developing proposals that are not only scientifically sound but also demonstrate a clear and compelling advantage over existing methodologies.

Program Design: Fostering Innovation in Ground-Based Astronomy

The ATI program’s design is intrinsically geared towards pushing the envelope of what is observable from Earth. It provides both individual investigator and collaborative research grants, acknowledging that groundbreaking advancements can emerge from both focused, individual expertise and the synergy of multidisciplinary teams. The emphasis remains steadfastly on the development of new technologies and instrumentation for ground-based astronomy and astrophysics.

Key areas of focus within the program design include:

• Enabling New Observations: A primary objective is to fund the creation of instruments and technologies that allow astronomers to capture data that is currently out of reach. This could involve observing fainter objects, at higher resolutions, with greater sensitivity, or across new spectral ranges.
• Innovative Use of Existing Technologies: While the program prioritizes novel development, proposals that demonstrate an innovative application of existing or off-the-shelf instrumentation are also considered. The key here is the "innovative use" – how existing tools are repurposed or combined in a novel way to achieve new scientific goals.
• Broad Spectrum Coverage: The ATI program supports technology and instrument development relevant to ground-based observatories operating across the entire electromagnetic spectrum, from optical wavelengths through radio waves. This comprehensive approach ensures that advancements are not limited to a single domain of astronomical study.

Examples of relevant technologies include, but are not limited to:

• High-contrast adaptive optics systems for exoplanet detection.
• Extreme-precision radial velocity techniques for characterizing exoplanet atmospheres and stellar properties.
• High-resolution spectrometers for detailed analysis of celestial objects.
• Interferometers for achieving unparalleled spatial resolution.
• Massively multiplexed spectroscopy techniques to observe numerous celestial objects simultaneously.
• Astrophotonics, a field merging optics, photonics, and astrophysics.
• Advanced imaging detectors with enhanced sensitivity and speed.
• Novel telescope and antenna designs.
• Cutting-edge optics and optical devices.
• Correlators and components for radio cameras.

Alignment with NSF’s Astronomical Sciences Mission

The technologies and instruments developed under the ATI program are intended to support research within the purview of NSF’s MPS Astronomical Sciences division. This includes a vast array of astronomical research areas, from cosmology and galactic evolution to stellar physics and planetary science.

Crucially, proposals must demonstrate a clear astronomical context. Submissions that do not adequately articulate how the proposed technology or instrumentation will significantly advance ground-based astronomical observations are at risk of being returned without review. This highlights the program’s direct link to scientific exploration, rather than purely technological advancement in isolation.

Differentiating ATI from Other NSF Programs

The ATI program generally supports projects that are more exploratory, smaller in scope, and potentially carry higher technical risk compared to programs like the NSF-wide Faculty Early Career Development (CAREER) program or the Major Research Instrumentation (MRI) program.

• CAREER Program: Primarily targets early-career faculty for integrated research and education projects.
• MRI Program: Focuses on increasing access to multi-user scientific and engineering instrumentation for research and research training within academic and non-profit research institutions.

Within MPS Astronomical Sciences itself, technology and instrumentation funding may also be available through the Astronomical Sciences Innovations program, which supports a broader range of astronomical activities, and the Astronomical Sciences Core Research program, which may offer some support for technology and instrumentation as part of broader research initiatives. Proposers are encouraged to consult with NSF Program Officers to determine the most appropriate solicitation for their specific project.

Emphasis on Exploratory and High-Risk, High-Reward Research

The ATI program explicitly favors exploratory research, concept feasibility studies, and projects that aim to retire risk associated with new technologies. Routine design development and incremental upgrades to existing instruments and facilities are generally given lower priority. This strategic focus allows the NSF to invest in potentially transformative technologies that might not fit the criteria of other, more established funding mechanisms. The willingness to fund high-risk, high-reward research is a hallmark of programs designed to foster disruptive innovation.

Community Access and Collaboration: A Core Tenet

A significant measure of success for the ATI program is the extent to which the developed technologies and instrumentation become accessible to the wider U.S. astronomical community. While proposals for private observatories are permitted, they are expected to clearly articulate the specific benefits that will accrue to the entire U.S. astronomical community. This principle of shared advancement ensures that public investment in technological development translates into broader scientific progress.

To further this goal, investigators are required to participate in an annual Principal Investigators (PI) meeting. These meetings, typically held between September and October, can be in-person, virtual, or hybrid. They serve as a vital platform for disseminating information, sharing experiences, and fostering collaboration among funded research efforts. Including travel funds to attend these meetings in project budgets is therefore recommended.

Budgetary Considerations and Proposal Elements

Proposals submitted to the ATI program may include contingency funds when appropriate. These costs must be clearly identified within the budget and their necessity thoroughly justified.

While specific review criteria are detailed in Section VI of the MPS Astro solicitation, strong ATI proposals typically exhibit several characteristic elements:

• Novelty and Innovation: A clear demonstration of the innovative nature of the proposed technology or instrumentation.
• Transformative Potential: A compelling argument for how the development will significantly advance astronomical science.
• Technical Merit and Feasibility: A robust plan for the development and a realistic assessment of technical challenges.
• Risk Mitigation: Strategies for addressing potential technical hurdles.
• Community Impact: A clear articulation of how the developed capabilities will benefit the broader U.S. astronomical community.
• Investigator Expertise: Evidence of the research team’s capability to execute the proposed work.
• Alignment with Program Goals: A clear connection to the objectives of the ATI program and ground-based astronomy.

Addressing the Sun-Earth Connection: A Note on Programmatic Boundaries

It is important to note that proposals focused on studying the effects of the Sun on Earth’s atmosphere and near-Earth space environment, including impacts on telecommunications and human activity, may be more suitable for the Atmospheric and Geospace Sciences Program (AGS). This clarification helps ensure that proposals are directed to the most appropriate funding avenue within the NSF, maximizing their chances of success and ensuring efficient allocation of resources.

Broader Implications for Astronomical Discovery

The ATI program’s sustained investment in advanced technologies and instrumentation is a critical enabler of future astronomical discoveries. By supporting high-risk, high-reward research, the NSF is cultivating the next generation of observational tools that will allow scientists to probe the universe with unprecedented detail. This includes the potential to:

• Discover and characterize more exoplanets: Advanced adaptive optics and high-resolution spectrometers can lead to the identification of smaller, Earth-like planets and detailed analysis of their atmospheres, searching for biosignatures.
• Unravel the mysteries of dark matter and dark energy: New observational techniques may provide crucial data to understand the composition and evolution of the universe.
• Study the formation and evolution of galaxies: High-sensitivity instruments can probe the early universe, observing the first stars and galaxies.
• Investigate fundamental physics: Precise measurements of cosmological parameters and phenomena can test and refine our understanding of physics.

The emphasis on community access ensures that these advancements are not confined to a few select institutions but are leveraged by a wide array of researchers, accelerating the pace of scientific progress across the nation. The annual PI meetings further solidify this collaborative ethos, fostering a dynamic ecosystem of innovation in ground-based astronomy. As the universe continues to present new and profound questions, the ATI program stands as a vital engine driving the technological advancements necessary to find the answers.