Late in the afternoon of Tuesday, July 2, a rare total eclipse will completely block the sun over parts of South America. It’s the first total solar eclipse anywhere on Earth since the Great American Eclipse of August 2017, which sent millions of people flocking to a narrow strip of the United States from Oregon to South Carolina.

Lucky sky-watchers in Chile and Argentina will have a front-row seat for the total eclipse, while larger regions of South America will witness a partial eclipse. And around the world, the rest of us can relive the excitement of the 2017 event with a great view online.

Multiple expeditions are setting up cameras along the path of darkness,