Caltech Essay Prompt 2 (2026-2027)
California Institute of Technology's supplemental essay 2 of 8 for the 2026-2027 application: the prompt, the limit, when it is due, and how to answer it. Verified on August 7, 2026.
“Regardless of your STEM interest listed above, take this opportunity to nerd out and talk to us about whatever STEM rabbit hole you have found yourself falling into. Be as specific or broad as you would like.”
Limit: 200 words (optional). Deadlines: Restrictive Early Action: November 1, 2026. Regular Decision: January 4, 2027.
What Caltech is really asking
What do you nerd out about when nobody is grading you?
The mistake most applicants make
Choosing something impressive instead of something true.
Do this instead
Pick the real rabbit hole, even if it is odd. Show how deep you went, with one detail only someone who cared would know. Enthusiasm reads better than prestige.
How to spend 200 words
200 words is two or three short paragraphs: the specific moment, what it revealed or changed, and why it points to this school. Cut any sentence that could appear in another applicant's essay.
How to start
Jim starts by asking you: “What STEM thing have you read about at midnight for no reason?” Answer it with Jim, free →
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What is the Caltech essay 2 prompt for 2026-2027?
"Regardless of your STEM interest listed above, take this opportunity to nerd out and talk to us about whatever STEM rabbit hole you have found yourself falling into. Be as specific or broad as you would like." The limit is 200 words and the prompt is optional.
How long should the Caltech essay 2 be?
200 words. 200 words is two or three short paragraphs: the specific moment, what it revealed or changed, and why it points to this school. Cut any sentence that could appear in another applicant's essay.
When is the Caltech essay due?
With the application: Restrictive Early Action: November 1, 2026. Regular Decision: January 4, 2027.
Can Jim help me write the Caltech essay?
Yes. Jim, the AlphaApply.ai counselor, has every Caltech prompt and deadline loaded. He asks the questions that surface your story and gives feedback on each draft. He never writes it for you. Free to start.
The other Caltech prompts
Prompt and limit for 2026-2027, verified on August 7, 2026. Always confirm on California Institute of Technology's official admissions site before submitting.