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.

The Orionid meteor shower peaks Oct. 21-22 with up to 20 meteors per hour. Comet Lemmon and Comet SWAN R2 may also glow green after sunset, making this a rare skywatch.

The Orionids will be at their best in the wee hours of Oct. 21, when up to 20 meteors per hour might be seen from a dark, rural sky. They'll appear to stream from a point in the sky not far from Betelgeuse in Orion. Although called the Orionids — named for their constellation of origin — they're actually small fragments of Halley's Comet.