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Satellites including those that are part of Elon Musk's Starlink system are often mistaken for other aerial vehicles.
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The perplexing incident occurred over Egypt during a recent routine flight of a Boeing 747 airliner.
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Biologist Prof Tim Coulson has suggested that one species in particular has the potential to dominate the planet.
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The clandestine vehicle has been in space for almost a year on its latest mysterious mission.
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The rhesus monkeys have so far managed to evade capture after escaping from a laboratory in South Carolina.
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The object had been picked up on sonar and was thought to be the wreckage of the famed aviator's plane.
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We tend to assume that an alien civilization would have its own home world - but what if they didn't actually need one ?
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A new study has highlighted the potential for finding habitable extrasolar worlds around F-type stars.
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The Moon will be joined by a second natural satellite for a short time beginning this Sunday.
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An Australian researcher believes he knows what happened to the plane and why nobody has found the wreckage.
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The smallest planet in our solar system may be hiding a treasure with a value beyond imagination.
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This relatively nearby world, which is a lot larger than our own, is situated approximately 49 light-years away.
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If an alien civilization has terraformed the atmosphere of a distant planet, we may be able to find it.
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The private jet and its passengers had vanished without a trace, leading to decades of fruitless searches.
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A planet thought to be the real-life equivalent of Spock's homeworld Vulcan might not actually exist after all.
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An unknown object was spotted in a very brief clip recorded during the Memorial Day weekend activities.
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China's answer to the X-37B is doing something in Earth's orbit and nobody is quite sure what that might be.
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Luring inquisitive extraterrestrials to our planet using nuclear radiation seems like a bit of a shot in the dark.
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Has the James Webb Space Telescope found life on a distant extrasolar world or could there be an alternative explanation ?
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A type of rare, though extremely energetic and deadly cosmic event is able to wipe out whole planets.