NASA Highlights Oct. 4 Saturn Opposition as Orionids Peak on Oct. 21-22

Q: Will the ancient remnants of Halley’s Comet trigger explosive fireballs in the night sky during the Orionid peak?

Probably not in a widespread or “explosive” sense, though some bright fireballs are possible. The Orionid meteor shower, which peaks overnight Oct. 21–22, is produced by dust and small debris left behind by Halley’s Comet. NASA and other skywatching sources say the Orionids are known for fast meteors, occasional fireballs, and lingering glowing trains. But in a typical year, the shower is modest rather than dramatic. Under dark, moon-free skies, observers usually see about 10 to 20 meteors per hour at peak. In rare stronger years, rates have climbed much higher, but forecasts for this season do not point to a meteor storm or an unusually explosive outburst. Several astronomy sources specifically note that the Orionids are not especially known for sudden storm-level activity. This year, a bright waxing gibbous Moon will further reduce visibility, washing out many fainter meteors. That means the best chance of catching the brighter streaks — including any fireballs — will come in the few hours before dawn, after moonset, from a dark location away from city lights. So the ancient remnants of Halley’s Comet should produce a noticeable meteor display, and a few striking fireballs cannot be ruled out. But skywatchers should expect a steady, relatively modest shower rather than a spectacular skywide fireworks event.

3 articles · Updated · Science@NASA · Oct 2

Oct. 4 brings Saturn to opposition, putting the ringed planet opposite the Sun and visible for much of the night in one of 2026's best viewing windows.
NASA said the Orionid meteor shower will peak overnight on Oct. 21-22, but a bright waxing gibbous Moon will wash out fainter meteors, making the pre-dawn hours after moonset the best time to watch.
Oct. 27-28, the Moon will pass close to the Pleiades star cluster, or Seven Sisters, which should be easy to spot low in the eastern evening sky.
The monthly guide also notes an Oct. 6 pairing of a thin crescent Moon and bright Jupiter before sunrise, rounding out NASA's October skywatching highlights.