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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

A horizon including the Tucson skyline and Saguaro cacti shows the sky just after sunset. Prominent in the sky are clouds oddly shaped like a fish -- but are the launch plume of a recently launched rocket from California. Please see the explanation for more detailed information.

Rocket Launch Plume over Tucson

Explanation: Yes, but can your sunset do this? Looking west from Tucson , Arizona , USA one day last month, the sunset sky looked strange when it briefly lit up with the plume of a rocket launched from California a few minutes earlier. Appearing at times like a giant space fish , the impressive rocket launch from Vandenberg Air Force Base near Lompoc , California, was so noticeable because it was backlit by the setting Sun. The Falcon 9 rocket successfully delivered to low Earth orbit 28 Starlink communications satellites. The plume from the first stage is seen on the right, while the soaring upper stage rocket is seen at the apex of the plume on the far left. The picturesque foreground includes the arms of saguaro cacti , city lights of Tucson, and the Tucson Mountains .

Date October 15, 2025
Credit Image Credit & Copyright: Wayne Showalter
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.