Astronomers Discover Ancient Solar System With 5 Earth Like Planets

rocky alien worlds that are 80 percent as old as the universe itself have been discovered, suggesting that Earth-size planets have been a feature of the Milky Way galaxy almost since its newfound exoplanets circle Kepler-444, an star about 25 percent smaller than the sun that lies 117 light-years from Earth. All of the worlds are Venus-size or smaller and are therefore rocky, though scientists know nothing else about their five alien planets complete an orbit in less than 10 days, meaning they're almost certainly too hot to support life as we know it. But Kepler-444 hints at the existence of other ancient planetary systems that may be more hospitable, researchers said. [10 Exoplanets That Could Host Alien Life]"We now know that Earth-sized planets have formed throughout most of the universes history, which could provide scope for the existence of ancient life in the galaxy," lead study author Tiago Campante, of the University of Birmingham in England, said in a perspective, Earth and everything else in our own solar system formed about billion years

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