If three’s a crowd, then six makes a chorus. That’s the case at least for a rare six-planet solar system whose discovery has wowed astronomers, even in an era when detecting planets around distant ...

Update: You can read our full report about the discovery of seven Earth-like planets here. NASA is about to announce something big about worlds beyond our solar system. That's via a recent post on the ...

NASA research reveals that the heliosphere, our solar system's protective bubble, may resemble a deflated croissant rather than a comet. This new model, based on the behavior of solar wind particles, ...

Planet Y: In a remarkable discovery that could reshape the prevalent scientific view of our solar system, astronomers have found evidence of a 'hidden' planet on the outskirts of our cosmic ...

Voyager 1, launched in 1977, has traveled farther than any spacecraft in human history. After more than four decades of silent endurance through space, it now sails beyond the orbit of the outer ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Our solar system is surrounded by a giant invisible bubble called the heliosphere. This protective bubble is created by the solar wind, streams of charged particles flowing out from the Sun, and it ...