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Explore the Night with Bob King
Catalina Comet Sails Into Northern Skies
Comet Catalina returns this month with naked-eye potential. Follow its every move with our guide and maps.
Explore the Night with Bob King
Rosetta's Comet Beckons At Dawn
Northern hemisphere observers have this month and next to get their best look at Rosetta's comet, 67P/Churyumov-Gerasimenko.
Rosetta's Comet Campaign Wants YOU!
Participate in a world-wide campaign to observe and photograph Comet 67P/C-G as it approaches and recedes from the Sun with Rosetta in tow. Your observations matter.
Explore the Night with Bob King
Comet PanSTARRS Keeps Getting Better
Since C/2012 K1's discovery two years ago, this first-time visitor from the outer solar system has brightened steadily and is now within reach of a small telescope and even binoculars.
