STEM in the Nation's Capital

Profiles, interviews, and features on the science shaping D.C. — reported, edited, and designed by the students at the front of the room.

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Featured Stories from The Catalyst.

Exploring groundbreaking research and the brilliant minds driving innovation in D.C. and beyond.

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Features

In-depth explorations of groundbreaking research and innovations shaping our world.

Profiles

Meet the scientists and innovators driving discoveries in the D.C. area and beyond.

Interviews

Candid conversations with leading experts sharing their journeys and insights.

Editorials

Thoughtful perspectives and op-eds on pressing issues in science and society.

Challenge Yourself

The Catalyst Vault.

A new cipher every issue — crack the four dials and only the sharpest minds will unlock the Winners' Lounge.

New Puzzle · Issue No. 03

Can you crack The Catalyst Vault?

Four sealed dials, each a clue that resolves to a single digit. A little arithmetic unlocks the code — but you get one attempt.

01. days in a week, notes in an octave, ancient wonders
02. the largest digit whose square's digits add back to it
03. the smallest perfect number
04. two squared, and the sides of a square

Enter the 4-digit code

Accept the Challenge