Astronomical websites and press releases brim with pictures of swirling gas giants, watery terrestrial worlds, and strange planetary systems with exotic suns. But just how realistic are these artist’s ...

Scientists are tracking a large gas planet experiencing quite a quandary as it orbits extremely close to a young star—a predicament never previously observed. This exoplanet, as planets beyond our ...

This month, if you should incline your head slightly upwards at night, you will receive a treat in the form of six of the eight planets visible in the skyline. Mercury, the closest planet to the Sun ...

A special planetary alignment is occurring in late February. Five planets are visible to the naked eye, with two more faintly showing. Here's how, where, and when to see the planets line up. The ...

Over the next few weeks, a stunning parade of planets will glow across the night sky, putting on a celestial spectacle that both amateur and seasoned stargazers can easily observe. All month, four ...