Scientists have discovered 15 new planets orbiting small fresh stars known as red dwarfs near our solar system. Of particular interest is a planet that researchers describe as a "super-Earth", which could harbor liquid water, and potential extraterrestrial life. Researchers at the Tokyo Institute of Technology say that red dwarfs are a great source of research for studies of planetary formation and evolution. One of the brightest red dwarfs, K2-155, is about 200 light-years from Earth, and has three super-lands in transit, which are slightly larger than our own planet. Of these three super-Earths, the outermost planet, K2-155d, with a radius 1.6 times that of the Earth, could be in the habitable zone of the host star, according to the researchers. The researchers found that K2-155d could have liquid water. Teruyuki Hirano, who led the study, said: "In our simulations, the atmosphere and composition of the planet were supposed to be similar to Earth, and there is no guarantee that this is the case." The researchers are now hoping to study the planets further to learn more about how they were formed, and whether they could support extraterrestrial life. ...
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