Nearly a month ago, a mysterious object was seen hurtling through the solar system and later confirmed as an interstellar ...

The Solar System, home to Earth and countless other fascinating planets and moons, exists within the Milky Way galaxy. But ...

The newly discovered world — a "sednoid" — challenges what planetary scientists thought they knew about the edge of the solar ...

There’s a visitor in town, and its name is 3I/ATLAS. The presumed interstellar comet presents a rare opportunity for ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

Science Officially Confirmed That The 10,000 Steps Rule Is Outdated. Here's The New Number To Target. 3-Year-Old Girl Found ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The answers to those questions depend on how we define the death of the solar system.

Comet 3I/ATLAS was first identified by the Asteroid Terrestrial-impact Last Alert System (ATLAS), a global network of four ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

Astronomers first identified these minerals using the now-three-year-old James Webb Space Telescope. To see where exactly the ...