Comets Lemmon and SWAN are making their closest approach to Earth in a rare cosmic treat. Can you see it in NJ? Here's timing, tips, more.

Learn when and where to see Comet Lemmon and Comet SWAN this October as they light up the night sky in a rare double comet event.

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning we won’t have a chance to see it again until 2061. The comet is expected to appear in our skies around mid-June that year, Space.com reports, and remain visible into August.

For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and the San Andreas fault — operated on separate geologic stages. One dives, one slides, and both hold immense destructive potential.