Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Mars has never looked more like a planet built for hiding secrets. A cluster of eight vast, water-carved caves appears almost engineered to shield fragile chemistry, or even biology, from the brutal ...

What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...

Despite its length and the reuse of ideas, Avatar remains a solid franchise — and Cameron continues to prove that some ...

Their investigations uncover that the object is actually a spaceship carrying Klaatu (Reeves) - an alien being camouflaged in ...