Which discovery has challenged astronomers' methods in the search for extraterrestrial life?

Question

Quizplus · Accepted Answer

The discovery of bacterial colonies powered by radioactivity deep underground on Earth has challenged astronomers' methods in the search for extraterrestrial life because it suggests that life might be able to survive in harsh environments that were previously thought to be uninhabitable, expanding the search criteria for potential extraterrestrial life.

Which Discovery Has Challenged Astronomers' Methods in the Search for Extraterrestrial