Institute of Astronomy

Ph.D. Programme

Applications for Admission October 2021 - PhD / MPhil / MASt


The application deadline for Ph.D., M.Phil. and MASt places to commence in the academic year 2021/22 (i.e. from October 2021) has now passed. Applications for admission from October 2022 will be possible from September 2021.

Course Overview

The Institute offers the opportunity to study for the Ph.D degree, for which the normal duration of study is three to three and a half years. The format is almost exclusively research based, although students attend a number of short courses during their first year focusing on research-related skills.

Ph.D. projects may be exclusively theoretical or observational but many combine aspects of both. It is normal for students to attend several relevant conferences/workshops during their period of study. Most students working on observational research projects will undertake observing trips (depending on the requirements of their project) to telescopes overseas. The typical Ph.D. intake each year is between 10 and 16. Full funding for Home, and some Republic of Ireland students, is via the award of one of our STFC Doctoral Training Partnership studenships. All eligible students will be considered automatically for an STFC studentship but significant additional funding is required to cover the University fees for Overseas students. A number of Overseas Ph.D. students are therefore admitted each year, with finance from other sources, including funding bodies in their own country and scholarships available to University of Cambridge applicants.

You may also be interested in postgraduate research opportunities in Cavendish Astrophysics and the Department of Applied Mathematics and Theoretical Physics. A separate University application is necessary for each department where you wish to be considered for a Ph.D. place.

Projects & Supervisors

Each year some 20 supervisors will offer a total of well over 40 Ph.D. projects. With 10-16 students starting their Ph.D., there are many more projects than students. As a consequence, the Institute does not provide a list of projects on offer for the coming academic year. Insight into the current research interests of potential supervisors can be found at Research at the IoA and by looking at their recent papers using NASA/SAO ADS or the preprint arXiv (astro-ph).

University and United Kingdom Government requirements mean that the linking of students to supervisors and projects depends on the University Fee Status of applicants – one of a) Home or b) Overseas. Students from the Republic of Ireland are a special case: the University fees are paid at the "Home" rate but applicants should apply for University funding and identify a supervisor (before applying) as if they are Overseas students.

For Home students, experience shows that offering students the opportunity to investigate and assess a number of projects once they have arrived in October has many advantages for both students and supervisors and represents one of the key attractions of choosing to undertake a Ph.D. at the Institute. The choice of Ph.D. project, normally decided within the first three months, is reached after discussion between the student and a number of potential supervisors.

For Overseas and Republic of Ireland students, however, to be accepted for Ph.D. study (in October 2021) and considered for University funding it is still necessary to have a named supervisor and a specific project-description.

For students from Overseas, there is hardly any time available following the Ph.D. application deadline (7 January 2021) to establish student-supervisor links and develop a project description. It is therefore essential that applicants make contact with a potential supervisor well before making a formal application to the University.

More specific information about completing the University Ph.D. application form, including funding eligibility and identifying a supervisor and project (for Overseas and Republic of Ireland students), can be found in the Funding section .

Other Opportunities at the IoA

A 4 Year Studentship in the Cambridge Centre for Doctoral Training in Data Intensive Sciences is also available to commence October 2021.  See attachment at the bottom of this page for further details. 

Please follow the instructions given on the IoA's admissions page you can then apply for the PhD in Astronomy on the Graduate Admissions website.

If you would like to be considered for this position please state this in your Statement of Interest, you may be considered for this alongside the STFC Doctoral Training Partnership Studentships.  If you DO NOT wish to be considered for the STFC DTP studentship please also state this in your Statement of Interest.

Academic Requirements for Admission

The Faculty's minimum academic requirement for admission as a Ph.D. student is the equivalent of a UK upper second-class four-year undergraduate honours degree (five-year from Scottish universities). However, competition for Ph.D. places at the Institute is such that offers of admission are made almost exclusively to students who hold, or are expected to receive a strong first class honours degree, or equivalent, in a relevant subject. If you are studying for a degree overseas and are unsure of its UK equivalent, please contact for advice.

In the United Kingdom and Australia, students will have completed a four-year undergraduate degree leading to a master of science, or similar qualification. In other countries, including the majority of Europe and India, a three-year undergraduate degree followed by a one- or two-year masters degree is necessary. A number of factors are considered when assessing applications, including undergraduate academic record, relevant research experience and availability of project/supervisor in the selected subject area. The competition for the limited number of Ph.D. places available means that for students graduating on a North American-related "GPA scheme" (maximum 4.0), essentially all successful applicants will have a GPA of at least 3.8.

The short, research-only, Ph.D. degree is suited to students who have an undergraduate degree in astrophysics or theoretical physics. Students whose initial training is in another discipline, such as mathematics, usually need to acquire a masters level qualification with a substantial physics-based element. For applicants interested in more theoretical research areas, the one-year MASt in Mathematics or our  MASt in Astrophysics are options for acquiring the necessary background in astrophysics prior to commencing study for the Ph.D. Typically, each year, several students completing these courses are offered admission for a Ph.D. at the Institute of Astronomy.

Please see our  Academic Requirements FAQ for further useful information about first degree requirements and some specific information for applicants educated in the USA.

Gianna Angelopoulos PhD studentship_CDT2021.pdf106.23 KB
Page last updated: 8 January 2021 at 08:05