Astronomers have found a super-Earth, HD 20794 d, in the habitable zone around a Sun-like star 20 light-years away. With a mass six times that of Earth and a 647-day orbit, it could have ...

Scientists have discovered a planet that could support life and is similar to Earth. Located just 20 light years away, this planet, named HD 20794 d, orbits a sun-like star and is believed to have an ...