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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.
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Bad news for alien life? Earth-size planets may be less common than we thoughtUp to 200 worlds investigated by NASA's exoplanet-hunting TESS satellite could be bigger than predicted, a finding that could impact our search for alien life.
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If aliens existed on Mars 3.7 billion years ago, they would have needed umbrellasA vast network of inverted channels, formed of sediment laid by ancient rivers, implies Mars was once a much rainier place than we thought.
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Largest known Martian meteorite on Earth sells for $5.3 million at auctionThe largest known Martian meteorite, NWA 16788, has been sold at auction for $5.3 million. The hefty chunk of the Red Planet, which weighs 54 pounds, could help unravel new secrets about Mars — if it's allowed to be studied.
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Could signs of Mars life be hidden in its thick layers of clay?The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting environments for long stretches in the ancient past, a new study suggests.
