No one knows exactly when Terrence Butler began keeping a journal, but there is a best guess. The first and only time someone noticed that he was writing something that he clearly wanted to keep ...

NASA's Mars Reconnaissance Orbiter spacecraft has just taken its milestone 100,000th photo of the Red Planet using its ...

NASA's Artemis program represents the most ambitious human spaceflight effort since Apollo, aiming not only to return ...

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The year’s most memorable moments from astronomy and space exploration include a double-detonating supernova, a private moon ...

The Sun has never looked quite like this. With a quartet of small satellites flying in formation, NASA’s PUNCH mission is ...

These 26 breakthrough products and technologies—handpicked by our editors—are redefining AI, computing, and the connected ...