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Rachel Crowell, Science Writer

Rachel Crowell

Rachel Crowell is a freelance math and science writer based in Iowa who has written for Eos, Scientific American, the American Mathematical Society, Science News for Students, The Open Notebook, and other publications. Crowell, who is a former AAAS Mass Media Fellow, holds a bachelor’s degree in mathematics and statistics from the University of Missouri at Kansas City.

Images of blue circles around the yellowballs
Posted inNews

The “Yellowball” Catalog and the Citizen Science That Helped Define It

Rachel Crowell, Science Writer by Rachel Crowell 26 July 20195 January 2023

The online community of the Milky Way Project citizen scientists helped scientists identify compact star-forming regions now known as yellowballs.

Buckled blacktop road in front of a tree-lined street
Posted inNews

How Satellite Data Improve Earthquake Monitoring

Rachel Crowell, Science Writer by Rachel Crowell 19 July 201912 December 2025

Case studies from around the world illustrate the power of geodetic data in earthquake monitoring.

Black-and-orange illustration of a black hole and accretion disk
Posted inNews

New Proof That Accretion Disks Align with Their Black Holes

Rachel Crowell, Science Writer by Rachel Crowell 10 July 201924 May 2022

In the most detailed and highest-resolution black hole simulation to date, an international team of researchers showed the Bardeen-Petterson effect for the first time.

Posted inNews

North Carolina Bald Cypress Tree Is at Least 2,674 Years Old

Rachel Crowell, Science Writer by Rachel Crowell 11 June 201915 October 2021

Researchers say it’s the oldest-known living tree in eastern North America. If it hadn’t been protected, it could have ended up as garden mulch.

Close-up, black-and-white satellite image of the lunar landscape
Posted inNews

The Quaking, Shrinking Moon

Rachel Crowell, Science Writer by Rachel Crowell 30 May 201915 November 2022

New evidence suggests that the Moon may still be tectonically active.

Seated man in a hard hat assesses sediment patterns in a dug trench
Posted inNews

Secrets from the New Madrid Seismic Zone’s Quaking Past

Rachel Crowell, Science Writer by Rachel Crowell 9 April 20198 December 2022

High-resolution lidar topography reveals a long history of ancient earthquakes.

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