UC Berkeley is teaming up with Google to document a rare solar eclipse set to happen this August — with help from over 1,000 volunteer photographers and amateur astronomers.

The total solar eclipse will cross the United States from west to east on Aug. 21 and scientists are looking for volunteers to record and upload time-coded images of the eclipse via a special app. The resulting photos will then be stitched together into a 90-minute movie.

The aim is to learn more about the sun, specifically the corona. The eclipse is being dubbed the Great American Eclipse, and is expected to be the most-viewed eclipse due to its path running from Oregon to South Carolina. Anyone along the path of totality will see the full, nearly three-minute eclipse, while others will see only a partial solar eclipse.

The last time an eclipse like this moved across the United States was in 1918.

Along with the eclipse, the teams are looking to capture the Diamond Ring effect seen just before and after totality, where a ring of sunlight can be seen around the moon, with one spot being significantly brighter than the rest — hence, a diamond ring. Scientists also want to document multiple bright spots along the edge of the moon, which are known as Baily's beads.

The Astronomical Society of the Pacific is also lending help by training volunteers on how to capture and share useful data on the eclipse via an hourlong webinar.

The eclipse is also expected to temporarily affect California's solar power plants, and state officials asked that residents unplug appliances and shut down unnecessary lights.

To learn more about the eclipse and the project, head here.