There’s a short dark window of about an hour after the Moon sets and before twilight begins to brighten the sky this morning. Use it to track down one of the most famous planetary nebulae in the sky: ...
NASA's James Webb Space Telescope has captured the sharpest infrared images to date of a zoomed-in portion of one of the most distinctive objects in our skies, the Horsehead Nebula. These observations ...
Nearly a millennium ago, astronomers witnessed a brilliant new star blazing in the sky—a supernova so bright it was visible in daylight for weeks. Today, its expanding remnant, the Crab Nebula, ...
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