When my colleagues and I send them out to explore our solar system, it's important for us to understand the 3D map of our ...

In what could be one of the strangest sightings, astronomers have discovered a planet in deep space with an unexpected orbit. What's more? It's orbiting two celestial objects that are neither suns, ...

While there is a little wiggle room, the planets in our solar system really are orbiting on mostly the same level. Why do ...

In a real-life twist on Star Wars' Tatooine—a harsh desert planet with twin suns and a criminal underbelly—astronomers have found a bizarre new world that orbits two stars at a perfect right angle.

While our Sun prefers to go solo, many other stars are parts of binary systems, with a pair of stars gravitationally bound to each other. In some cases, the stars are far enough apart that planets can ...

What is “down” in the vastness of space? Scientists reveal how gravity, cosmic planes, and perspective redefine direction, ...

AMES, Iowa – Using data from NASA’s Kepler space telescope, an international team of astronomers has discovered a distant planetary system featuring multiple planets orbiting at a severe tilt to their ...