Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature ...

For decades now, UFO stories have mostly involved blurry lights in the sky, shaky footage shot on potato phones and men ...

Since the 1950s, humanity has been searching for extraterrestrial life with increasingly sophisticated tools. But after decades of space probes, meteorite analysis, radio telescopes, and UFO ...

GREENBELT, Md. -- A team of international scientists says they've found sugars in meteorites that could be essential to the creation of life. The team, which included scientists from NASA and other ...

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A flying piece of cosmic rock or an alien threat? Comet 3I/ATLAS is hurtling through our solar system and captivating scientists and internet users alike. This NASA image shows the interstellar comet ...

New UCR research shows that the search for life beyond Earth could benefit from a statistical approach that prioritizes ...

President Trump on Thursday directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of public fascination — and spawned more ...

Hidden within Cassiopeia A, the youngest known exploded star in our galaxy, astronomers have found surprisingly high levels of chlorine and potassium. These elements carry an odd number of protons in ...