What if you found out that you had a long-lost relative? And what if that long-lost relative was from a different planet in our galaxy? And what if this faraway planet was home to billions of humans, ...

Elon Musk has turned a long-running joke about being an extraterrestrial into a central part of his public persona, even as he argues that humanity may be the only intelligent life in the universe.

When Neil deGrasse Tyson was 9 years old, he visited the Hayden Planetarium for the first time. Growing up gazing into light pollution in the Bronx, he had no idea there were that many stars. “I was ...

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 ...

By studying Earth's toughest microbes and complex animal "speech", scientists are reshaping how we search for – and may someday talk to – alien life.