ESA will intentionally crash Juice into Ganymede to end the mission -- unless it finds signs of life there.

Unveiling Jupiter’s secrets: The trailblazing Juice mission

Life Evolves. Can Attempts to Create 'Artificial Life' Evolve, Too?

Percival Lowell studied planets through the 24 inch Clark telescope and announced his discovery of canals and oases on Mars in 1894, which no other astronomers saw. Lowell used this telescope for the rest of his life and sketched Venus, despite the fact that it has no visible surface features