SpaceX space jellyfish may return Tuesday: when and where to look

SpaceX is targeting a one-hour window that opens at 6:30 a.m. EDT on Tuesday, Oct. 20, from pad 40 at the Cape Canaveral Space Force Station. The mission was meant to fly Monday morning, but SpaceX called it off early Monday because the weather was poor in the area where the rocket’s first stage was supposed to land at sea.

The outlook is better for Tuesday. The 45th Weather Squadron, the Space Force unit that forecasts for Florida launches, gives a 90 percent chance of acceptable weather during the window. Forecasters still see a moderate risk that conditions at the landing zone won’t cooperate, though that is an improvement on Monday. If Tuesday doesn’t work out, there’s a backup opportunity on Wednesday, October 21, with the same morning window.

The flight would be the 60th orbital launch of 2026 from Florida’s Space Coast, a sign of just how routine these early-morning liftoffs have become.

A space jellyfish is sunlit rocket exhaust seen from the dark ground below. It happens when a launch takes place shortly before sunrise or just after sunset.

About 3 minutes after liftoff, the rocket climbs high enough to reach sunlight, even though it is still dark where you’re standing. Up there, the air is so thin that the exhaust spreads out fast. The sun lights up that expanding cloud, which is mostly water, and it can form a glowing bulb with long, wispy trails hanging below it. That’s the jellyfish.

Nothing is falling back to Earth, and it isn’t a chemical spray. It’s the same exhaust every rocket leaves behind, just caught in the right light at the right time.

Here’s the twist. Last week’s launch, a resupply run to the International Space Station that lifted off at 6:33 a.m. on Oct. 13, flew northeast up the Atlantic coast. That’s why people from Alabama to Maryland and Tennessee saw it, and why photographers caught it as far away as Grand Isle, Louisiana.

Bandwagon-5 will head southeast instead. That puts the best views over the Caribbean and central and southern Florida. People in the Carolinas may still catch it, but lower in the sky and fainter than last week’s display.

Timing matters too. The effect is most likely if the rocket flies early in the 6:30 to 7:30 a.m. window. In Raleigh, for example, the sky will be too bright by about 7 a.m., ahead of a 7:24 a.m. sunrise. A late liftoff could mean a normal rocket trail and no jellyfish at all.

You don’t need a telescope. You need a clear view toward the southeast and a little patience.

• Check the time first. Launch times slip often. Confirm on SpaceX’s mission page before heading out, since it also carries a live stream.
• Find a low horizon. Trees and buildings can hide a plume that sits only a few degrees above the horizon, especially far from Florida.
• Get away from streetlights. Give your eyes a few minutes to adjust to the dark.
• Wait a few minutes after liftoff. First you’ll see a point of light climbing. The glow usually appears several minutes later, then changes shape quickly as upper-level winds move it around.
• Use a planning tool. Photographer John Kraus runs a Space Jellyfish Predictor that estimates where the plume might be visible, though it warns that its trajectory guesses are less certain for viewers far from the launch site.

If you want photos, set your phone on something steady and use its night mode. The plume is wide, so don’t zoom in.

The sky show is a side effect. The real job is delivering 32 payloads to low Earth orbit, and a few of them are unusual.

• Starfall: SpaceX’s own uncrewed reentry capsule, which first flew in June. SpaceX describes it as a microgravity lab for researchers and companies. Federal filings say it is about 0.75 meters (2.5 feet) tall and 3.1 meters (10.2 feet) wide, weighs about 2,100 kilograms (4,600 pounds) and can carry up to 1,000 kilograms (2,200 pounds) of cargo. SpaceX hasn’t said what, if anything, is inside this one.
• Varda W-Series 7: a smaller capsule from Varda Space Industries carrying a cancer drug called Protac. The test checks whether the drug forms better crystals in weightlessness, which could make it dissolve more easily and work better as a treatment.
• Starburst-1: a 260 kg demo spacecraft from Portal Space Systems that can move between orbits and carry a 50 kg customer payload. Portal says customer flights start in 2027.
• Satellites for hire: rideshare firm Exolaunch arranged 20 of the payloads, including four radio-monitoring satellites from HawkEye 360, four from Finland’s Iceye and six navigation satellites from Xona Space Systems.

Reentry capsules are the quiet trend here. Instead of only putting things into space, companies now want to bring experiments and products back, which is why several capsules share this ride.

The first stage, tail number B1085, is flying for the 19th time. It previously launched NASA’s Crew-9 astronauts, the Fram2 private crew mission, the Blue Ghost lunar lander and 10 batches of Starlink satellites. About nine minutes after liftoff, it will try to land on the drone ship A Shortfall of Gravitas in the Atlantic. A good landing would be the 672nd Falcon booster landing overall.