Do you think there is life on other planets beside Earth? A lot of scientists think there is life on other planets.
Normally when scientists look for life on other planets, they look for water. But how are we sure that other species need water to live?it is possible that other species actually not need water to live.So we have to search every planet for life, if it has water or not.
Normally when you think of aliens, you think of creatures with spaceships and advanced technology, But how are we sure that alien's are more technologically advanced than us? The aliens species could have very little or no technology. They could also have more advanced technology.
So far alien life has not been proved.There might or not be aliens. The universe is very big. Aliens could be trillion's of miles away.