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APOD: 2026 October 23 – Andromeda in Southern Spring

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. Andromeda in Southern… 

El Niño Then and Now

Image of the Day for October 23, 2026 A 35-year satellite altimetry record lets scientists hold this year’s El Niño up against its strongest predecessors. NASA Earth Observatory Oct 23, 2026 Article View more Images… 

Spiral’s Edge

NASA, ESA, Michael Jones (California Institute of Technology); Image Processing: Gladys Kober (NASA/Catholic University of America) This NASA Hubble Space Telescope image released on Oct. 16, 2026, features the edge-on, intermediate spiral galaxy NGC 1827,…