In a major milestone in the search for life on other planets, astronomers have detected, for the first time, an atmosphere ...

The catalog of known worlds beyond our solar system has crossed another threshold. NASA’s official tally now exceeds 6,000 confirmed exoplanets, a figure that has continued climbing on a rolling basis ...

Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying long-standing theories of planet formation. The finding hints that some ...

Add Yahoo as a preferred source to see more of our stories on Google. Lurking throughout the distant cosmos beyond the solar system, researchers recently found what they believe could be another ...

Astronomers using NASA's James Webb Space Telescope have discovered a giant planet outside our solar system, called an ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

We usually think of our Solar System as a calm, well-organized family of planets, but a new study suggests its early days may have been far more chaotic. Instead of the four giant planets we know ...

Scientists may have found one of the main sources of rocky material for the solar system, forming diverse populations of baby planets over millions of years. In a recent study published in The ...