What If on MSN
What if aliens actually brought life to Earth?
Where did life on Earth come from? It is one of humanity’s oldest and most fascinating questions. For centuries, people have ...
Can desert planets with alien life, like the one in the movie *Dune*, exist? Scientists’ answer leans toward “no.” A study suggests that planets with almost no water are highly unlikely to sustain ...
Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.
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, ...
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