The discovery of Earth-like habitable planets these days are a dime-a-dozen, but this latest discovery is closer to home... not only in habital-conditions but also in distance.
Tau Ceti, the closest single star like our Sun, has planets just like our solar system. But more importantly, one of these planets orbits in the habitable zone around the star. Tau Ceti is very close to Earth. It's only 12 light-years away, which in cosmic terms is just around the corner. It's so close that we can see it with the naked eye at night.
This is an important discovery, as it shows once again that almost every star has planets. According to UC Santa Cruz professor of astronomy and astrophysicist Steve Vogt—one of the authors of the study that is going to be published in the scientific journal Astronomy & Astrophysics—"this discovery is in keeping with our emerging view that virtually every star has planets, and that the galaxy must have many such potentially habitable Earth-sized planets."