How to Find PhD Supervisors in Aerospace Engineering (and Get Funded)

Aerospace engineering carries a specific complication most PhD-supervisor advice, including advice written for engineering more broadly, doesn't unpack in detail: export control law decides which research an international student can actually touch, not just which named fellowship they can apply for. NASA's own graduate fellowship excludes international students outright, and a meaningful share of aerospace research in US universities sits under the International Traffic in Arms Regulations (ITAR), which restricts what foreign nationals can work on even inside a university lab. Understanding how the exclusion that protects most university research actually works, and what breaks it, changes how you should evaluate a specific professor's lab before you reach out.

NASA's main fellowship is closed to international students

NASA Space Technology Graduate Research Opportunities (NSTGRO), the agency's primary graduate funding mechanism, is explicitly limited to US citizens, nationals, and permanent residents pursuing a master's or doctoral degree at an accredited US university. The award is made to the university with the faculty advisor serving as principal investigator, and a recent listed cycle showed award amounts up to roughly $84,000. NSF's Graduate Research Fellowship Program and the Department of Defense's NDSEG fellowship, the other two fellowships commonly listed alongside NSTGRO, carry the same citizenship restriction. For an international applicant, none of these three major named fellowships are a realistic funding target, which makes the professor's own, non-fellowship funding source the thing that actually matters.

The fundamental research exclusion: what it actually covers

Most university research, including a lot of aerospace work, operates under what's called the fundamental research exclusion (FRE). Under NSDD 189, fundamental research is defined as basic and applied research in science and engineering whose results are ordinarily published and shared broadly within the scientific community, as opposed to proprietary work or product development. University export-control offices generally treat the FRE as exempting that kind of open, publishable research from the licensing requirements that would otherwise apply to foreign nationals working on export-controlled technology. The exclusion covers the dissemination of research information itself, it doesn't cover the physical transfer of controlled hardware, and specific technical data tied to a defense article, operation manuals, data sets, blueprints, can still be off-limits to a foreign national even in an instructional setting unless a specific exemption or license applies.

What actually breaks the exclusion on a specific project

This is the detail that matters most in practice: a lab can run one grant that's genuinely open, fundamental research, and a second project, sometimes with the same faculty member, that isn't, because of how a specific sponsor's contract is written. University export-control guidance describes the FRE as destroyed the moment a university accepts a contract clause restricting the participation of foreign nationals, giving the sponsor a right to approve publications before release, or otherwise limiting who can access or disclose the work. None of that is visible from a lab's public website. The honest question to ask a prospective advisor, or their current students, isn't "is your research export-controlled," it's "which specific project would I actually be working on, and does its funding agreement include any publication-approval or foreign-national restriction."

Satellite and spacecraft work sits under tighter rules than most other aerospace research

Not every aerospace subfield carries the same export-control exposure. Satellite technology has specifically been pulled under broader ITAR coverage since regulatory changes following heightened national-security scrutiny in the late 1990s, in ways that can override the fundamental research exclusion that would otherwise apply to openly published work. The AIAA has published a position paper arguing that outdated or vague technical criteria, things like specific propellant mass thresholds or loosely defined terms like "active controls," end up sweeping educational rocketry and CubeSat projects into export-controlled territory even when the work is intended to be shared openly, and that this disproportionately affects projects involving international students. Propulsion, flight dynamics, and computational fluid dynamics labs are generally less export-control-exposed than satellite and spacecraft hardware labs, but that's a general pattern, not a guarantee, confirm it for the specific lab and project you're considering.

Export control applies to the person, not only to the project

A concept worth understanding before you assume a published, open project is automatically safe to join: under ITAR, releasing controlled technical data to a foreign national, even inside a US university lab the foreign national is legitimately enrolled at, can itself count as a regulated export, commonly referred to as a "deemed export." This is why export control offices care about who is in the room for a specific piece of work, not only about whether the broader project is generally open. A lab can be doing fundamental research for publication purposes while still having to manage, document, or restrict exactly which specific technical data a specific international student can see, particularly for anything touching a defense article's operational details. That's the practical reason a university export control office, not just the professor, is a legitimate party to ask about your specific situation before you commit to a lab.

Outside the US: other countries, other restrictions

If the ITAR landscape makes a US aerospace PhD feel genuinely constrained, it's worth knowing that funding outside the US runs through different structures, not necessarily fewer restrictions, just different ones. France's ISAE-SUPAERO, a major aerospace-focused institute, describes its PhD funding as benefiting from a range of sources tied to its close ties with the aerospace industry, and its own guidance for international students points toward support from either the French government or the student's home country government, separate funding logic from the US fellowship-and-grant system described above. Imperial College London's aeronautics PhD program, in the UK, is large enough to offer specialist immigration advice specifically for international students, a practical sign that the university expects a meaningful share of its aerospace PhD cohort to be international, even though UK aerospace research carries its own separate export-control regime (ITAR governs US-origin technology and technical data regardless of where it's physically located, so UK and other non-US labs working with US-origin hardware or data aren't automatically exempt from it either). The honest takeaway: don't treat "go outside the US" as an automatic workaround, check the specific funding structure and export posture of each country and lab you're actually considering.

The realistic funding route for an international applicant

With NSTGRO, GRFP, and NDSEG effectively off the table, the realistic funding target is a professor's own non-fellowship funding, whether that's internal university money, a departmental assistantship, or a research grant where the sponsor hasn't imposed foreign-national restrictions. Wichita State's aerospace doctoral program describes its own students as typically supported by federally funded grants and internal university funding, which is a representative pattern across the field rather than an outlier. The practical research step is the same one that matters in any grant-funded engineering field, checking a specific professor's current, active grant funding before you invest time writing to them, but here it's worth going one step further and asking their department's export control office, or the professor directly, whether the specific project you'd join carries any foreign-national restriction, rather than assuming an active grant automatically means you can work on it.

A practical search order

• Identify professors actively publishing in your specific subfield, and favor propulsion, flight dynamics, and computational work over satellite and spacecraft hardware if export-control exposure is a real constraint for you.
• Check whether a specific professor currently holds active, non-fellowship funding, internal university support or a research grant, rather than assuming NASA, NSF, or DoD fellowship funding is in play for an international applicant.
• Ask directly, either the professor or the department's export control office, whether the specific project you'd join operates under the fundamental research exclusion or carries a foreign-national restriction from its sponsor.
• If you're a US citizen or permanent resident, NSTGRO, GRFP, and NDSEG remain genuinely worth applying to, and naming an interest in one in your outreach can strengthen your case with a prospective advisor who already holds related funding.

GradScoutFunding handles the professor-identification step: it searches professors by field and country, confirms they're actively publishing, and drafts a personalized first email grounded in their real recent paper for you to review and send yourself, it never sends anything automatically. The free tier gives 100 credits with no card required, and paid credit packs are one-time purchases that never expire.

Common questions