Frozen exhaust smoke from Elon Musk's SpaceX Falcon 9 rocket left a spiral plume in the night sky, which had stargazers agog. The UK's Met Office confirmed the illuminated swirl had caused a flurry of reports from stunned onlookers.
In a post on X the authority said: "The rocket's frozen exhaust plume appears to be spinning in the atmosphere and reflecting the sunlight, causing it to appear as a spiral in the sky."
The spirals form when ejected from the rocket and get frozen in space because of the altitude, before reflecting sunlight back towards Earth making them visible in the night sky.
The Falcon 9 rocket launched in Florida on Monday evening on a classified US government mission.
We've received many reports of an illuminated swirl in the sky this evening 💫
— Met Office (@metoffice) March 24, 2025
This is likely to be caused by the SpaceX Falcon 9 rocket, launched earlier today. The rocket's frozen exhaust plume appears to be spinning in the atmosphere and reflecting the sunlight, causing it to… pic.twitter.com/4a9urgZceR

Fire in rebel-held east Congo kills 24 schoolchildren
Trump touts $5,000 payout if Republicans win as Vance waits in wings
Search expands after Philippine ferry fire kills five and leaves dozens missing
Trump says Iran war to end after US midterm elections
At least 20 killed in cargo vessel fire at China shipyard, state media reports
US military says it struck vessel in Caribbean, killing 3
At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
