planet 128Astronomers have spotted a roughly Earth-mass world circling the small, dim star Ross 128, which lies just 11 lht-years from the e planet, known as Ross 128b,Only 11 lht-years away, Ross 128 b is the 2nd-closest-known rocky exoplanet. Here's a recent study scrutinizing Ross 128 b, as it relates to the fascinating search for distant