Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.

Elon Musk’s aerospace company is reportedly targeting a mid-June IPO because there will be a spectacular planetary alignment ...

Innovation flourishes not because people collaborate more broadly but because the right people fall into productive orbit ...

A unique characteristic of the candidate planet HD 137010b is its ice-cold temperature.

Why don't planets fall into the stars they orbit if they're constantly being pulled by gravity?Lindsey CoughterRocky Mount, North Carolina This is a brilliant question because the notion of an orbit ...

Astronomers have discovered a new Earth-sized planet located 146 light-years from our solar system. The planet, named HD ...

The big astronomical event in February is a rare “planetary parade,” according to NASA. You’ll be able to see Mercury, Venus, ...

Astronomers have detected an exoplanet candidate around a Sun-like star just 146 light-years away from us.

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

That would make it thousands of times more massive than any moon orbiting a solar system plane  — so massive it could make ...

Jupiter harbors more oxygen than the sun, a new study finds, giving astronomers a crucial clue about how our solar system's planets formed.