Revised observations showed it to be about 140 kilometers (87 miles) wide. But that’s still the biggest anyone has ever seen—most comets in the solar system are only one or two kilometers across.

In his new book '52 Assignments: Night Photography', award-winning astrophotographer Josh Dury invites you to raise your lens ...

This summer is shaping up to be a colorful one, especially at your local library. This year’s Summer Reading program is ...

NASA’s Coronal Diagnostic Experiment (CODEX) has released its first set of images showcasing never-before-seen details of the ...

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Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

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Find an overview of Windows 11 specs and features from Microsoft. Learn about the device specifications, versions, and languages available for Windows 11 ...