Scientists are becoming more convinced that there is alien life, and they say that there are several possible scenarios that could lead to their discovery:
- Mars. The planet has water undergroung and used to have even more water, which is key to life. Scientists believe that there's a good chance microbes would be living underground, even though they haven't found any evidence of this.
- Europa. The moon of Jupiter has radiation on the surface that would kill life. However, under a frozen ocean there is a chance that some type of microbes live in the liquid part below, perhaps near hydrothermal vents.
- Enceladus. The small moon of Saturn has supersonic plumes of gas and dust that shoot from its surface that could indicate it could have all-important liquid water.
-Titan. Saturns largest moon has liquid oceans, but they're most likely methane.
- On a planet outside our solar system. It is possible that astronomers using telescopes could detect an atmosphere on such a planet that could only be explained by photosynthesis or biological processes.
- On Earth. Scientists could fine life that came a board a meteorite or comet. They also could fine life deep in the sea or beneath Antarctica's ice, that is so unusual that it probably came from space.
- In radio signals. Scientists are scanning for alien transmissions from space.
I think if we were to find any aliens, they probably wouldnt be the small, big eyed, green things we picture. Probably more like small organisms like bacteria or something.... It's still an alien though, I guess. The one part about finding aliens on Earth kinda creeps me out. To think that there might be alien life on this planet is weird... However, if scientists discover new organisms, how would they be able to tell if its from another planet or has always been on this planet?
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