University of Washington researchers have published a 5-billion-year computational simulation of Earth without life, ...

Aliens have long been a staple of science fiction. Yet the possibility of intelligent life beyond Earth is more than a matter of imagination—it is also a subject of serious scientific inquiry.

Best known for dissolving bodies in bathtubs, sulfuric acid has the potential to be the elixir of life on other worlds.

Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet from ...

One of the greatest mysteries of life is whether we are alone in the cosmos. The laws of probability suggest we aren’t, but ...

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In workshops focused on future-oriented thinking or backcasting, absurd ideas are generated one after another, only to be consumed along with the excitement of the moment. I often find myself ...