On Oct. 2, an annular solar eclipse will create a “ring of fire” in the sky, visible along a path across the Pacific Ocean, southern Chile, and southern Argentina. For those not in the path, livestreams are available. The moon will cover about 93% of the sun’s disk, leaving a bright outer rim. Timeanddate.com will provide a livestream starting at 2:45 p.m., and a live blog will offer views and on-the-ground reporting.