Our Sun’s outer atmosphere, the corona, is millions of degrees hotter than it should be, and no one knows why.

Earth could be thrown off its orbit and flung into another planet or the Sun, a new study has warned. Passing stars could be the orchestrator of this cosmic instability which could jeopardise our ...

The universe is always moving. While we've found evidence of rogue black holes and planets, new research suggests that a passing star could be out there somewhere. Unfortunately, If it were to swing ...

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Planets in our solar system orbit the Sun in different orbits in three-dimensional space. Scientists have claimed that an interstellar visitor, much larger than any celestial body in our solar system, ...

(FILES) This NASA file image obtained August 9, 2002 shows one of the two Voyager spacecraft. More than 35 years after it launched on a mission to explore the cosmos, NASA's unmanned Voyager ...