Looking for a sky event this week? Check out our full Sky This Week column.  September 16: Triangle in the sky The Moon passes 0.6° south of the bright star Antares at 9 A.M. EDT. By evening, our satellite sits near the border of Scorpius and Ophiuchus, some 6° east (to the upper left) of Antares. TheyContinue reading "The Sky Today on Thursday, September 17: The Moon and the Scorpion"

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Today I’ll be telling you about 10 of my favorite autumn deep-sky objects, with suggestions for viewing them. I hope you’ll enjoy this list, and I’ll share some other deep-sky favorites of mine from time to time in the future. What’s a large telescope? The notion of what’s big changes from observer to observer, butContinue reading "Autumn observing targets for large telescopes"

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When the Artemis 2 crew splashed down in the Pacific Ocean on April 10, the excitement was palpable — Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen had swung around the Moon, broken a human spaceflight distance record, and come home safely. But for the Artemis program, it was just the beginning. Between April’sContinue reading "Why we need in-orbit refueling to return to the Moon"

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