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This artist’s conception illustrates one of the most primitive supermassive black holes known (central black dot) at the core of a young, star-rich galaxy. Astronomers using NASA’s Spitzer Space Telescope have uncovered two of these early objects, dating back to about 13 billion years ago. The monstrous black holes are among the most distant known, and appear to be in the very earliest stages of formation, earlier than any observed so far. Credit: NASA/JPL-Caltech.

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Credit: Tim Doucette.

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This 2016 Curiosity rover selfie shows the vehicle at the “Okoruso” drilling site on Mount Sharp’s Naukluft Plateau. The Martian scene is a mosaic of images taken with the arm-mounted Mars Hands Lens Imager (MAHLI). Credit: NASA/JPL-Caltech/MSSS. Credit: NASA/JPL-Caltech/MSSS.

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March 2026

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Andromeda’s knotty arms

Imran Badr, taken from San Jose, California

Our nearest major galactic neighbor, the Andromeda Galaxy (M31), shows off its star-forming regions, glowing in hydrogen gas and tracing out its dense spiral arms. This image represents 400 hours of total exposure, including exposures in Hα, SII, and OIII filters of 215.6, 46.6, and 132.8 hours, respectively, taken on a combination of a 2.4-inch refractor and 5-inch reflector.