I belive yes to beings outside of earth.
There arnt "suns", and all planets discovered cant support life (Most a balls of gas 2-5 times jupiters size, and teperatures are around 1300F!!). However, there are other stars that might support life around it. Several organisms can adapt over time to an enviorment.
Also, on topic, there might be aliens in our own solar system. Although we have gone there, gas giants are so massive, somewhere in it, could be flying or floating creatures that are called, acoording to the books, Floaters and swordtails. Also, on Europa, on of Jupiters moons, there is actually an ice flow that is known to have liquid water under it. It could be possible life could stay there. And on pluto, we havent even seen a good enough image of it. Most things wpould survive insane temps, but could possibly last.
ALSO, there has been another planet discovered over the summer, titled UB303 if im correct. Life is not predicted to live there, for it is 8 billion miles away from the sun...but hey, it is neat. And we have found a moon orbiting the planet.
So im voting yes.
kind of, but ofcourse they need to breathe and something to move. so land creatures Must have Something like legs right?
In a book i read called "our universe", one of the organisms on Europa was mouthless, noseless, and legless. It skated along the ice and absorbed some of the neutriants in the water, via skin. It was also green to take in sunlight for its own food.
They dont have to breathe, fungi is a perfect example of organisms on earth that do not need air. only light and food and water. THough some fungi just need food i think...im more physics and astronomy than biology though.