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APOD

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.

Enceladus in Silhouette

Explanation: One of our Solar System’s most tantalizing worlds, Enceladus is backlit by the Sun in this Cassini spacecraft image from November 1, 2009. The dramatic illumination reveals the plumes that continuously spew into space from the south pole of Saturn’s 500 kilometer diameter moon. Discovered by Cassini in 2005, the icy plumes are likely connected to an ocean beneath the ice shell of Enceladus. They supply material directly to Saturn’s outer, tenuous E ring and make the surface of Enceladus as reflective as snow. Across the scene, Saturn’s icy rings scatter sunlight toward Cassini’s cameras. Beyond the rings (lower right), the night side of 80 kilometer diameter moon Pandora is faintly lit by Saturnlight.

Tomorrow’s picture: pixels in space

Date: November 5, 2026 Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA Authors & editors: Jerry Bonnell, Cecilia Chirenti, Robert Nemiroff, Keighley Rockcliffe A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.


Random APOD Generator

Yesterday’s Image APOD: 2026 November 4 – The Not-So-Hidden Galaxy, IC 342


Tomorrow’s Image