Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in ...

A new planetary system is forming around the young star HOPS-315. Scientists observed the earliest stages of planet formation around another star. The process involves the cooling and solidifying of ...

The Sun's formation caused temperature differences in the surrounding disk of gas and dust. Inner, hotter regions formed rocky planets from less volatile elements. Outer, colder regions allowed ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

Comet C/2025 V1 (Borisov), discovered by an amateur astronomer, is captivating scientists. Its unusual orbit initially ...

New findings offer clues about the ancient origins of asteroids and their potential role in the formation of terrestrial ...

Study from Bielefeld finds major departure from the standard model. How fast and in what direction is our solar system moving through space? This question, though simple in appearance, plays a central ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...