Programs Physics PhD with a b.sc from a different field? (Australia)

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A candidate with a B.Sc. in biochemistry and two years of undergraduate physics is considering a PhD in astrophysics but is uncertain about their chances of admission. The discussion highlights that many PhD programs, particularly in Australia, typically require a strong honors degree in a relevant field, which may disadvantage candidates without a full physics degree. It is noted that while some programs may accept candidates from related disciplines, biochemistry is generally not considered closely aligned enough with astrophysics. The importance of finding a willing PhD supervisor is emphasized, as well as the competitive nature of the astrophysics community, where candidates with the appropriate prerequisites are likely to have an advantage. Recommendations include reaching out to specific universities, such as ANU, to inquire about admission requirements and exploring interdisciplinary fields like astrobiology or molecular astronomy that may better align with the candidate's background.
Miscing
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Hi, I have a B.sc with first class honours, with a major in biochemistry and I want to do a phd in astrophysics. I have two years of undergrad physics and a good knowledge of vector calculus, DEs, linear algebra, etc. What are my chances of getting into a program? I know in america you guys have a standardised exam for grad school entry, but we don't have that here. Does it depend on finding a phd supervisor willing to take me?
 
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I don't know too much about the Australian system, but I'd guess that you still need a full degree in physics to be considered as a candidate for graduate school in physics. Many programs will consider candidates from similar fields, but this generally means subjects like engineering physics or physical chemistry. Biochemistry is unlikely to cut it, I'm afraid.

One of the first questions I would have is how do you know you want to do a PhD in astrophysics when you haven't even completed a senior undergraduate course in physics?
 
Miscing said:
Hi, I have a B.sc with first class honours, with a major in biochemistry and I want to do a phd in astrophysics. I have two years of undergrad physics and a good knowledge of vector calculus, DEs, linear algebra, etc. What are my chances of getting into a program? I know in america you guys have a standardised exam for grad school entry, but we don't have that here. Does it depend on finding a phd supervisor willing to take me?

I don't know if you have a good chance because many PhD programs here usually require honors of a high calibre (first class or upper second class) to get into the respective PhD programs.

Also since we have a good astrophysics community, and since it is limited, I imagine that the people with all the pre-requisites will be way in front of the queue than people with your kind of background.

I would of course send a letter to the relevant person in that particular department of the university, but I do know it's pretty standard for PhD degrees to have a good honors degree in the field of study you wish to apply for.

If I were you, I would send an email to ANU since they have a good astrophysics program there and just ask the right person what your chances are. I would however go to the respective website and check because they would probably have answered this question already.
 
You might be best to aim for something like astrobiology, for example the Australian centre for astrobiology at UNSW (http://www.aca.absociety.org/aca/ ). You might also contact groups that are interested in molecular astronomy (e.g., http://www.postgraduate-research.physics.unsw.edu.au/astrophysics.html ) or more chemistry related astronomy (e.g., http://astronomy.swin.edu.au/~smaddiso/research/).
 
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Hey, I am Andreas from Germany. I am currently 35 years old and I want to relearn math and physics. This is not one of these regular questions when it comes to this matter. So... I am very realistic about it. I know that there are severe contraints when it comes to selfstudy compared to a regular school and/or university (structure, peers, teachers, learning groups, tests, access to papers and so on) . I will never get a job in this field and I will never be taken serious by "real"...
Yesterday, 9/5/2025, when I was surfing, I found an article The Schwarzschild solution contains three problems, which can be easily solved - Journal of King Saud University - Science ABUNDANCE ESTIMATION IN AN ARID ENVIRONMENT https://jksus.org/the-schwarzschild-solution-contains-three-problems-which-can-be-easily-solved/ that has the derivation of a line element as a corrected version of the Schwarzschild solution to Einstein’s field equation. This article's date received is 2022-11-15...

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