Astronomers are narrowing the field in their search for a "second Earth." An international team of researchers has identified the 20 most Earth-like worlds among the more than 4,000 exoplanet

A catastrophe ominously looms on the horizon. Planet X, a huge planetary body, or star, is headed our way. Described as a great “Red Star,” the path of this approaching, heavenly object puts it on a potential,