Final answer:
Astrobiology explores the origin of life on Earth and the possibility of life originating from outer space. There is evidence supporting the idea that life arrived on Earth from an extraterrestrial object.
Step-by-step explanation:
Astrobiology, the study of life in the universe, explores the origin of life on Earth and the possibility of life originating from outer space. While scientists have several hypotheses about the natural origin of life on Earth, there is evidence supporting the idea that life arrived on Earth from an extraterrestrial object. This evidence includes the presence of organic compounds in meteorites, the ability of microorganisms to survive the harsh conditions of space, and the discovery of amino acids in the Miller-Urey experiment, which simulated the conditions of early Earth.