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Stunning 'sun dogs' could sparkle in alien skies, James Webb Space Telescope suggestsHigh-speed winds on exoplanet WASP-17b may align quartz crystals in its atmosphere and create dazzling light effects like "sun dogs."
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Skyscraper-size spikes of methane ice may surround Pluto's equatorGiant, ridge-like structures of methane ice, known as "bladed terrain," may be much more abundant along Pluto's equator than previously realized, a new study suggests.
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Earth, Mars, Venus — and a long-lost planet — may have once 'waltzed' in perfect harmony around the sunNew simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once orbited in mathematical harmony around the infant sun.
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The hunt for 'Planet Nine': Why there could still be something massive at the edge of the solar systemThe debate about an undiscovered Planet X or Planet Nine has been going on for more than 100 years.
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5th planet found orbiting nearby star may lie in habitable zoneA super-Earth exoplanet has been detected within the habitable zone of a nearby red dwarf star, where liquid water might exist on its surface under the right atmospheric conditions.
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Moon, Mars, and meteors: Why July 28 is the best night for skywatching all summerA conjunction between a crescent moon and Mars joins an ongoing display of 'shooting stars,' making July 28 one of the best nights for skywatching all summer.
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New dwarf planet 'Ammonite' could upend the existence of Planet NineA newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be another nail in the coffin for the Planet Nine hypothesis.
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A doomed exoplanet is caught in a 'death spiral' around its star. Can it survive?A massive doomed exoplanet on a death spiral toward its parent star has three possible catastrophic fates.
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Scientists find Uranus is surprisingly warm, heating up the case for a new planetary missionScientists have found that Uranus emits its own internal heat, contradicting data from NASA's Voyager 2 probe nearly four decades ago.
