A scientist who studies the possibility of life existing beyond Earth and the conditions under which extraterrestrial life might develop.
Compound of astro- and biologist. This profession emerged formally in the 1960s during the space age, though speculative astrobiology dates back centuries.
Astrobiologists are paid to think about aliens scientifically—they study extreme deserts, deep ocean vents, and acid lakes on Earth to understand where life could hide on distant worlds.
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