Is there life in space? Are we alone? These are big questions. Scientists will try to find if anybody is out there. Scientists have a mission, "to understand and explain the origin...of life...and the evolution of intelligence". They will scan the sky for signs of alien life. "Citizen scientists" will help real scientists to spot things.
Scientists will use radio telescopes to look for "techno-signatures" of alien life. These include chemicals, oxygen and lasers. A scientist said finding out if we are alone is one of the biggest questions in science. Another scientist said we are getting closer to finding out. She said science fiction is now "almost mainstream" science.