PhD Program Application Resources

Looking for some advice on the graduate school application process? Below are some resources, tips, tricks, and examples of successful PhD application materials specifically for astronomy programs!

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First off, it is important to know whether or not graduate school is the right path for you. A PhD program is more than just "the next step" in your academic career. Graduate school is where you learn how to be an independent researcher on the cutting-edge of humanity's knowledge. It can be both incredibly challenging but equally rewarding to know you're making an impact in your field.

If this sounds exciting, great! Graduate school may be for you.

Outlined below is advice I have for a general timeline of the process, graduate application statements, and the NSF graduate student fellowship statements, as well as additional resources I found helpful when I applied!

I also want to note that there are many shortcomings and ways to improve the admissions process on the universities' side. There is still a long way to go before this system becomes more equitable. With that being said, I hope to aid current and future applicants with relevant advice and plan to update this site when changes are implemented across graduate programs applications.

A timeline of the process

If I could change one thing about my experience, I would have started planning earlier! It is easier to remain organized the earlier you start, so here is a loose timeline and suggested material that I would recommend when undertaking this endeavor. It's important to note that everyone has a slightly different path to graduate school, so take whichever parts of this that work for you.

Summer before your final academic year (July):

Start looking into potential programs at different schools. Decide what you are looking to get out of a career post-undergrad. Are you enthusiastic about astronomy, physics, or even optics research? Can you focus your interest into a subfield like exoplanets, galaxies, instrumentation etc? This will help you narrow down a list of specific programs. At this point, it's important to note that you don't want too small of a list either. An aspect that I believe can increase your chances of success is being open to as many programs as possible. Graduate admissions is a numbers game and often seen as a crapshoot since so many deserving people apply for so few spots. The more programs you apply to the more likely you are to be admitted to one! A caveat is that you should still be happy with going to any of the schools on your list and there is no such thing as a safety school for graduate programs.

However, the application process is not accessible to everyone when application fees can range from $50 to over $100. Therefore, it is important to apply for fee waivers. This extra step can relieve a lot of economic stress when it comes to applying. Finally, this is the time to make your Curriculum vitae (CV) or updated it! A CV is an academic resume tailored to your academic and research achievements (see below for an example).

Beginning of final academic year (August):

The beginning of the academic year is a great time to ask for letters of recommendation. Most astronomy programs want three letters, so make sure to give each letter writer as much time as possible to compose a strong letter. If you plan to apply for the NSF graduate student fellowship, they will also ask for three letters of recommendation, so reaching out to potential letter writers as early as possible is advantageous. Sometimes, it can be difficult to think of three different people to ask for these letters, but a good place to start is asking your research advisors or post-docs with whom you worked closely, academic advisors (i.e. a professor who taught a class you were engaged in or maybe TA'ed for), or faculty sponsors for a club in which you played a role. Sometimes the merit of the letter is more powerful than the prestige of the person writing the letter. However, make sure they can write a strong letter for you. Don't be afraid to keep tabs on your letter writers' progress, especially when the deadline approaches!

Furthermore, now is a good time to cold email faculty at schools you are interested in to see if they plan on taking students. There has been debate over whether this step is useful, but in my opinion the bare minimum this provides is an exercise in writing professional emails and helps you narrow down which schools are top tier in your mind. Taking the initiative to reach out to them has the potential of showing how committed you are to the program and will allow you to narrow down potential faculty mentors as well. It's okay to be forward and ask if they are planning on taking students! Worst case scenario is that they don't respond, but trying will not hinder your potential.

You may also want to consider applying for the NSF graduate student fellowship. The application requires a personal statement and a research proposal (see below for details), and the deadline is normally in October, so make sure to give yourself plenty of time to prepare. If you have previous research experience, it could be helpful to reach out to your advisor to brainstorm research proposal ideas. If this is your first time writing a proposal, it may be daunting, so your advisor's expertise is vital! There is no harm in applying for the NSF GRFP as an undergraduate student because if you don't receive the award, you can always re-apply in graduate school, but you are allowed only one attempt once you are in a graduate program.

October:

This is normally when the NSF GRFP is due, so make sure all materials for that are ready! This is also a good time to start drafting a general graduate school personal statement and statement of purpose. You can tailor it to each school when the deadline approaches. If you applied for the NSF GRFP this should make drafting up your essays easier! Around this time is ideal to have a solid list of schools you want to apply to.

October is also the deadline to submit an abstract to the American Astronomical Society (AAS) where you may showcase the work you did in undergrad via a poster or a short talk! It's also a great place to network and get a sense of the cutting-edge research being conducted in the field.

Should you take the Graduate Records Exam (GRE)? Since the beginning of the pandemic in 2020, most programs have stopped requiring the general GRE and the physics GRE. Studies have shown that standardized test scores do not correlate to success in a PhD program, and therefore many schools make the test optional. The main reason one would take the test is if they earned their bachelor's degree in a completely different field and wanted to prove their readiness for a physics-based program. If you are planning to earn a bachelor's degree in a physics related field and decide to not take the GRE, your chances will not be hurt when applying to schools where the GRE is optional.

November:

Now would be a good time to ask for feedback on application materials. You can ask your letter writers, and current graduate students in your department! Also, see if your current institution is holding workshops and editing sessions for graduate school application materials. This is also the time to start tailoring your statements to specific schools. Beware of different word/character limits for different schools! Reaching out for fee waivers at the programs you want to apply to around this time is also favorable.

December:

Time to polish up statements, update your CV once more, confirm your letters of recommendation are ready, and... time to submit! Most applications are due in the first half of December depending on the school. CONGRATS you made it through this long and demanding process!! The application process can be an exhausting time period, so it is commendable to put in such effort! Some schools will also have an interview stage in January or early February. Most of the time they will give you the questions they will ask in advance to allow you to prepare. These questions will be related to previous research you've conducted and what research you want to do in the future. Make sure to prepare questions to ask them in return. Decisions normally happen between January and March depending on the program.

In January, the winter American Astronomical Society (AAS) meeting is also a place to make connections with fellow astronomers and present your work. Since abstracts for posters/talks are submitted before the admissions deadline, you can talk about attending the meeting in your application!

I strongly recommend having an organization system to keep track of programs you are interested in, and it benefits your letter of recommendation writers so they can also tailor their letters to the different programs!

Below are some helpful resources to start choosing PhD programs and also what my CV looked like when applying to graduate programs.

Graduate Program Statements

I believe the most important components to a graduate program application are the statements.

Whereas a CV will tell them who you are, the statements show them who you are with a clear and direct narrative of your experiences.

The key elements I believe reviewers look for are varying levels of experience and merit in these categories:

Academics

  • Coming into graduate school with a breadth of knowledge in the general field will set you up for any research project you may start. If you have experience applying your academic knowledge in facets such as tutoring or TAing, it speaks volumes to your readiness to be a mentor as a graduate student.
  • Taking graduate level classes as an undergraduate highlights a similar point, and could be refered to in an application statement.
  • There has been an effort to de-focus an applicant’s academic merit solely on their GPA. If your grades suffered one semester, these statements are an opportunity to explain why.
  • Be clear about weaknesses and more importantly how you overcame them. The committee will care more about resilience than a perfect GPA.

Research

  • Your primary role in a graduate program is to learn how to be an independent researcher, so having experience beforehand demonstrates your readiness to dive deeper in graduate school.
  • Research experience shows your curiosity in the field, and determination to explore the cosmos.
  • It's important to paint a narrative of what you contributed to the research project and what you learned from it.
  • If you are participating in a research project, admissions committees are interested in research products such as being an author on a paper, or presenting a poster at a conference or symposium. Even writing about an expected timeline of such events in your statements can show your organization and time management skills.
  • If you haven’t done as much research or don't have research products yet, it may be beneficial to give an explanation. Participating in research as an undergraduate is a privilege as you are not guaranteed to be paid for your work, and most admissions committees will recognize that some students will prioritize a job that pays a living wage over research progress.

Outreach/Service

  • Outreach experience highlights your sense of community and initiative to broaden your goals to more than just research. Detailing your experience will help you stand out amongst many academically qualified candidates.
  • Science communication is vital to our field at different audience experience levels.
  • Astronomy has a large underrepresentation of POC because of the initial barriers to enter. Two large barriers are not having early exposure to the possibilities of this type of career and not having the confidence to pursue STEM. Outreach events lower these barriers and promotes interest in astronomy.
  • Some examples of outreach can include organized public "star parties" on your local campus or at primary and secondary schools, and something as simple as tutoring your next door neighbor can also show outreach initiatives.
  • Astronomy is a privileged field, some might view it as a form of escapism, so my personal view is that it’s important to stay grounded to humanity through outreach because that’s where it all starts. Since the beginnings of human history, we've wondered why we are here and what our place in the cosmos is, and this wonder is inherently human.
  • Again most outreach opportunities are volunteer-based so socio-economic factors may play a role in how much you’ve been able to participate is important to acknowledge as well.

Now how do you split these topics between a statement of purpose and personal statement?

The statement of purpose should be dedicated to why you want to attend graduate school, and show evidence that you would excel in graduate school. Therefore, emphasizing research experience is imperitive in the statement of purpose. It is also important to show that you have looked into the program you are applying to! Examples of this would be mentioning professors you would like to work with as well as interesting outreach projects the department runs (this is where you are tailoring your general graduate statements to specific schools). The personal statement is best used to narrate a bit of your background, expand on any outreach/service you have done in your community, and explain any hardships you have faced that have impacted your academics and how you overcame them.

Overall, it is important to show them that you are a good fit for their program and that they are a good fit for your future goals!

Below are example statement of purposes and personal statements that were successful. Some schools asked for combined statements, or only a statement of purpose which is something to be mindful of.

NSF Graduate Research Fellowship Program

The National Science Foundation Graduate Research Fellowship Program (NSF GRFP) is a highly renowned fellowship granted to students entering (or are in their first two years of) a science-based PhD program and are either a US citizen, national, or permanent resident. A fellowship lasts five years, with a stipend offered for three of those years while the other two years are classified as "on reserve." This takes the burden off your PhD advisor to find funding for a graduate student and can also grant freedom to a graduate student who wants to work on a specific project. For a more in depth explanation visit their website here: NSF GRFP website. The solicitations are their rules for submission, and can change from time to time so it is important to read. Referring back to the timeline, there is no harm in applying for the NSF GRFP the fall of your final academic year. If you are not rewarded then, you can apply during your first OR second year of graduate school but once you are in a PhD program, you only have one chance to apply. So, it is important to be strategic if you plan to apply for this fellowship in graduate school. The benefit of applying during graduate school is you may have a more defined research proposal and experience with research writing techniques by then.

What does the application process look like?

The application requires a personal statement, a research proposal, and three letters of recommendation. The statements are slightly different from a PhD program application because the NSF has stricter criteria that you must follow. For both the personal statement and research proposal you must include an "intellectual merit" and "broader impacts" section.

The personal statement will look like a combined version of a graduate program’s statement of purpose and personal statement. Under intellectual merit, you can talk about your research experience or any other academic challenges you’ve overcome. Under broader impacts, you can talk about outreach services you’ve done and a little bit about what you plan to do once you are in graduate school. In both categories make sure you are using specific examples of things you did! The final informal section to include is a future goals section. This should be about where you see yourself a few years into graduate school as well as the path you want to take after graduating with a PhD.

The research proposal is a bit different. The purpose is to show that you are ready to be an independent researcher and can propose your own project. If you are currently doing research you can talk with your advisor to help generate ideas and to guide you down the right path. Most of the proposed research methodology will go in the intellectual merit portion of the statement. Make sure to include a timeline of different phases of your project like checkpoints. The broader impacts section is meant to get you thinking about how this project will benefit the community in general, as well as an in-depth explanation of any outreach you plan to do in graduate school.

A common phrase is that the “GRFP funds the person not the project” meaning they care more about your potential to be a leader in the future more than the specific project you propose!

The example below was written when I was first-year graduate student. It is important to note that reviewers assess undergraduate and graduate statements separately.

Highlighted Resources

Logan Pearce's website

Logan is a PhD candidate at Steward Observatory at University of Arizona who has extensive experience helping students with the application process!

Learn more

Alex Lang's website for the NSF GRFP

Alex's website has knowledgable advice on the NSF GRFP application as well as many examples of successful essays.

Learn more

Graduate School Guide

Astrobites has many articles on the PhD application process, graduate student fellowships, and tips for visiting graduate schools. This article is a jumping off point!

Learn more

TIMESTEP website

Tucson Initiative for Minoritized Student Engagement in Science & Technology Program (TIMESTEP) includes many resources and templates for organization. They also have resources for gap year planning and careers in industry.

Learn more

Other resources