The Spacecraft that Discovers Life Around Another Star

How might a future unmanned interstellar mission search for, and interact with, life on a distant exoplanet?

Artistic depiction of an interstellar space probe around a distant exoplanet. Credit: Elreviae (image)

Building an Autonomous Space Probe

Carl Sagan, speaking at a NASA press conference in 1990, declared that mankind had “completed a preliminary…