For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

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Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert warned — after he sounded the alarm that an incoming interstellar object ...

A pair of space probes cruising the solar system may be able to pass through the tail of the mysterious Manhattan-sized comet hurtling towards Earth — but only if the scientists operating them act ...

As the research team from Penn State and NASA's Jet Propulsion Laboratory analyzed decades of deep-space communication logs, they found patterns in how we have beamed signals into the cosmos. Their ...

A recently circulated photo from NASA’s Mars Perseverance rover has sparked renewed fascination with interstellar comet 3I/ATLAS. The striking image appears to show a bright, cylindrical object moving ...