Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery challenges long-standing ideas about how planets form and orbit in the cosmos.

Planets orbiting two suns are rare. Scientists now understand why. Subtle gravitational forces, amplified by Einstein's relativity, destabilize planetary orbits over eons. This leads to planets being ...

A team of scientists has found a new planet which orbits the wrong way around its host star. The planet, named WASP-17, and orbiting a star 1000 light years away, was found by the UK’s WASP project in ...

Right angle Illustration of 2M1510 showing the orbits of the two brown dwarfs (in blue) and that of the planet (in orange). (Courtesy: ESO/L Calçada) The first strong evidence for an exoplanet with an ...