Earth is unlike any other planet in the solar system. It is covered with water, and it is teeming with life. Earth is the one world we know in the universe where life exists. If the ingredients and conditions that lead to life on Earth can be found on another world, could life have started there, too?
The search for life beyond Earth starts with a search for environments that sustain liquid water. After a blast-off from Earth, Water Is Life travels to Mars, to Jupiter and its moons, and to the outer solar system searching for watery environments.