Project Hail Mary reminds us how important our world is – and how vital science is to our continued existence on it.

MOUNTAIN VIEW, Calif. (AP) — Astronomers say a bit of science fiction is now reality. They've spotted a planet orbiting two suns. The discovery was made by NASA's planet-hunting telescope Kepler.

For decades, science fiction treated alien planets like Earth with a different paint job. This video shows how real exoplanet discoveries changed that, forcing writers to imagine harsher climates, ...

Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just finding distant worlds, they are cataloguing places with molten surfaces, ...