Europa Basics
This planet is orbited by Europa.
What is Jupiter?
This astronomer discovered Europa in 1610.
Who is Galileo Galilei?
What is the Big Bang?
Europa's surface is mainly made of this substance.
What is ice?
Scientists hope Europa may contain this.
Europa is a type of celestial object.
What is a moon?
What is a telescope?
This leftover radiation came from the early universe.
What is cosmic microwave background?
Europa is about this many AU from Earth on average.
What is 5.2 AU?
Scientists still do not know how thick this layer is.
What is Europa's ice crust?
Europa is one of these four famous moons discovered by Galileo.
What are the Galilean moons?
Europa was discovered in this century.
What is the 17th century?
Stars create heavier elements through this process.
What is nuclear fusion?
Europa's surface can reach this freezing temperature.
What is about -220oC?
These underwater features may exist on Europa's ocean floor.
What are hydrothermal vents?
Europa may contain this beneath its icy crust.
What is a liquid ocean?
These three things are considered important for life of Europa.
What are liquid, chemistry, and energy?
This force helped form Europa and Jupiter.
What is gravity?
This spacecraft took detailed photos of Europa.
What is Galileo Spacecraft?
What is Juno Spacecraft?
Europa's other name is this Roman numeral.
What is Jupiter II?
This NASA mission is studying whether Europa could support life.
What is Europa Clipper?
Massive exploding stars are called these.
What are supernovae?
Scientists think this type of ocean exists beneath Europa's surface.
What is a salty ocean?
Scientists want to know if humanity is this in the universe.
What is alone?