Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.


A $1.2 million challenge to advance how we measure Earth's magnetic field.

Type of Challenge: Scientific
Submission Start: 03/21/2019 09:00 AM ET
Submission End: 05/16/2019 04:59 PM ET

This challenge is externally hosted.

You can view the challenge details here: