PhD in Astrophysics

California Institute of Technology (United States) · 1200 E California Blvd, Pasadena, CA 91125, United States

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The California Institute of Technology is a private research university in Pasadena, California. The university is known for its strength and engineering, and is one among a small group of institutes of technology in the United States.

Program Details:

Program Website

Basic Info

Institute

Division of Physics, Mathematics, and Astronomy

Degree

PhD

Duration

5-6 years

STEM Designated

Yes

Program

Astrophysics

Expense

Living Expenses

USD 30500

Tuition Fee (Domestic)

USD 68000

Tuition Fee (International)

USD 68000

Eligibility

Minimum/ Avg Score

TOEFL

Undergrad GPA

3.5

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Deadlines:

Deadline Website

Intake Deadline 1

15 Dec, 2025

(August-2026)

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Document Required:

Degree Transcript

Common Document

Upload an official electronic copy of your transcripts or online grade reports issued by your college or university. Updated grade reports for terms in progress are not required.

Letter of Recommendation (LOR)

University Specific

Register three individuals from whom you will request letters of recommendation.

Resume

Common Document

Upload a CV or Resume.

Statement of Purpose (SOP)

University Specific

Upload a Statement of Purpose.

Test Score Report

Common Document

1) TOEFL/IELTS/PTE/Duolingo 2) GRE

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FAQs

The tuition fees for the PhD in Astrophysics at California Institute of Technology are $68,000 for both domestic and international students.
The next available intake for the PhD in Astrophysics at California Institute of Technology is in August 2026.
To apply for the PhD in Astrophysics at California Institute of Technology, you need to submit a Degree Transcript, Test Score Report, Letter of Recommendation (LOR), Statement of Purpose (SOP), and a Resume.
For the PhD in Astrophysics at California Institute of Technology, an English proficiency score of TOEFL 80 or higher is required.
The median undergraduate GPA required for the PhD in Astrophysics at California Institute of Technology is 3.5.

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