Many in the EarthSky community submitted photos of a large, solitary sunspot that's been making its way across the sun's face this week. It's still there, and observers are reporting you can glimpse it using your solar eclipse glasses, perhaps leftover from the Great American Eclipse of 2017? Remember … never view the sun without eye protection. Read more.
Cancer the Crab is famous, but faint. Notice the bright stars around the moon Saturday and Sunday evenings. They can guide you to Cancer when the moon moves away. Read more.
It's not a computer simulation. It's not an artist's concept. It's the 1st radio image of a supermassive black hole - at the core of the distant galaxy M87 - via the Event Horizon Telescope Collaboration. Read more.
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