Dr. David Williams from NASA responded with her letter and included a photo with pictures of the Europa Clipper and the satellites Europa and Jupiter in the back.
There is water, that is, there is life. Europa - one of Jupiter's four moons - is becoming the latest candidate to nurture life in the solar system.
The breakthrough astronomical findings in 2015 help scientists have more motivation to prove people are not alone in the universe.
NASA intends to spend $ 25 million to discover the satellite Europa - which has an ocean and is believed to contain life beyond Earth.
Earlier this year, NASA said it was developing a solar spacecraft, scheduled to launch in 2020 to study the Jupiter system.
Klara Kalousova, a scientist at the University of Nantes in France and Charles University in Czech, and colleagues recently completed a study of Europa, Livescience reported.
Mars, the Orion Nebula, Jupiter's satellites Europa are places where humans should pay attention in the search for life in the universe.