Ok this sounds like a reasonable strategy so how would one know what to look for in terms of signaling of this type of environment? Basically they use this strategy:
Many exoplanet scientists turn to models to understand how Earth might appear if it were a distant alien world. However, the accuracy of these models can be difficult to gauge without observations to verify them.
That sounds like a good idea. And why not look for exoplanets with this feature and maybe keep it in a certain distance for further evaluation as opposed to star systems that are billions of light years away.
And here is a video about one of the most interesting exoplanets that you may have heard about:
Exoplanet Kepler 452b with SETI Institute scientists Douglas Caldwell, Jeffrey Coughlin, Joseph Twicken. Hosted by Seth Shostak.
We hope you enjoy the video!
thanks to NASA for the great pic
Scientist are looking for oxygen planets for life.But does all life breath oxygen ?
Plants do need oxygen to survive; don’t they considered to be living
Plants use co2 so its bound oxygen Bermane. However many species of plant, animal, fungi bacteria hsve been found that dont necessarily need o2 ans still other arsenic based life has been found in particular US lakes.
And thermal vents