An interstellar object called 3I/ATLAS has just passed our sun. Despite online rumours that it’s an alien spaceship, experts say it’s definitely a comet.

So by now you must be aware that something ominous is approaching our solar system on a clear path towards Earth at an astronomical speed and in a way that is "not natural" and puzzling the scientific ...

Astronomers found an interstellar "tunnel" - a cosmic channel that connects our solar system to distant stars, according to a ...

The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

As the third known interstellar object in history, 3I/ATLAS has astronomers and the internet on edge. Is it just a comet from another star system, or something stranger, as Harvard's Avi Loeb hints?

The heliosphere was first theorised by multiple scientists investigating the concept of cosmic rays and the solar wind in the late 1950s, according to NASA. They believed the sun provided a web of ...

The earliest images of 3I/ATLAS, newly uncovered by Michigan State University, reveal how the interstellar object evolved as it traveled through our solar system—and how other distant solar systems ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Astronomers have discovered a new world circling the outer edges of our solar system. Researchers using the Subaru Telescope, located in Hawaii, spotted a small, distant object called 2023 KQ14 far ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...