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Our solar system has two ice giants, Uranus and Neptune, but there may have been a third....
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The city spectacle is back for 2026 — and don't worry you'll have another chance to see...
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Occasionally I see references in Astronomy to the speed of something as “supersonic.” I’m having trouble reconciling...
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The focus of this NASA/ESA Hubble Space Telescope image is an active spiral galaxy on a journey...
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Venus, Jupiter and Mercury headline a spectacular month of planetary viewing.
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In the 1870s, real-estate mogul James Lick established a trust of $700,000 (around $1.2 billion today) for...
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This could change our understanding of how the cosmic titans collide.
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The second full moon of May put on a spectacular show on May 31.
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Astronomers may have discovered one of the clearest examples yet of a rare “pair-instability” supernova. It is...
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The explosion of Blue Origin's New Glenn rocket is a big setback for the spaceflight company and...
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Looking for a sky event this week? Check out our full Sky This Week column. May 31: Blue Moon,...
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It’s 2234, you’re on your annual class field trip touring exoplanets, and your teacher informs everyone they...
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Mercury reaches greatest elongation in the evening sky this month. Venus and Jupiter have a spectacular conjunction,...
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June evenings offer a great chance to view three bright planets. Jupiter, Venus, and Mercury gather in...
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It’s June 2027, and you’re fresh off defending your PhD studying the direct imaging of exoplanets while...
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It’s 2165, and methane is in high demand, especially after the Titan Treaty of 2145 made it...
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Before any spacecraft can survive the Moon, it has to survive something almost as brutal, a giant...
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We are closer than ever to detecting signs of life on another world. The James Webb Space...
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In recent decades, the Search for Extraterrestrial Intelligence (SETI) has seen a revival, and future surveys will...
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For nearly thirty years, dark energy has been cosmology’s great get out of jail free card, the...