Imagined planets, ecosystems and creatures show how diverse alien biology could become.

And if aliens made of different stuff potentially possess consciousness, then why not minds made of silicon, metal, and ...

The United States government's recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Milky Way galaxy has more than 400 billion stars in it. Over the last few decades, ...

Aliens may well exist somewhere in the cosmos, but they are unlikely to be visiting Earth any time soon, according to a new ...

Disclosure Day treats extraterrestrial life as a challenge to faith. It’s not.

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn ...

The United States government's recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...