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

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

The astronomers observed hot minerals just beginning to solidify – the first specks of planet-forming material, the ...

Scientists have been able to recreate the extreme conditions found on icy moons in deep space—and revealed the unstable ...

Learn about cryovolcanism, which shapes the surface of icy moons in the outer Solar System by releasing water that ...

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

A tiny meteorite is rewriting what scientists thought they knew about the origins of our solar system.New evidence found in ...

A large lunar crater featured in the iconic 'Earthrise' photo has just helped the European JUICE spacecraft hone its ...

Planets and small bodies like those in our solar system likely formed through the mixture of interstellar solids with rocky solids that condense from the hot gases surrounding a young host star ...