The town of Weiser was filled with eclipse watchers on Monday, but some folks had some very serious business.
Scientists from NASA were on hand with some delicate equipment to take measurements during the eclipse.
They have been working on a special experiment for the past year, in an effort to measure light from the sun's corona.
"By looking at the corona in infrared, we get the temperature of the corona at this wavelength, so we should be able to learn about how the corona is heated," said Don Jennings of NASA.
The scientists want to know how the sun's rays make it through the corona, in order to better understand solar power.
They will take the information they gather and compile it at the Goddard Space Flight Center in Maryland.