The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not settled the matter, some UFO enthusiasts say.
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First alien signal may be a civilization’s final cry
Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping argues as much, and his “Eschatian Hypothesis” reimagines the way ...
New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.
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