Thanks to an enormous stroke of luck and serendipitous timing, astronomers were able to calculate the mass and distance of a ...

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

Learn how we know the Earth is round, and the science behind the shape of our gravitational field.

In a secluded corner of the Lynx constellation, just 18 light-years from our planet, astronomers have found a stunning jewel—a planet around a tiny red dwarf star that may have the right conditions to ...

Learn more about PSR J2322-2650b, a lemon-shaped exoplanet that may be in a toxic relationship with its host star.

An international team of scientists, including researchers at Penn State, dubbed the exoplanet, named GJ 251 c, a “super-Earth” as data suggest it has a rocky composition similar to Earth and is ...

The discovery of a possible "super-Earth" less than 20 light-years from our own planet is offering scientists new hope in the hunt for other worlds that could harbor life, according to an ...