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 ...

Jupiter’s early growth carved rings in the solar system, delayed meteorite formation, and kept planets like Earth in stable ...

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 ...

How fast and in which direction is our solar system moving through the universe? This seemingly simple question is one of the ...

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

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 ...

This article lists the top 7 largest moons in our Solar System, detailing their size, the planet they orbit, and key ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds.

The space object, named Chiron, is believed to be a piece of rock measuring a whopping 130 miles wide at its broadest point - but that's not what makes it unusual. Scientists have recently discovered ...