In the early days of our solar system, when the Sun was still young and the planets were barely formed, Jupiter wasn’t the ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

Recent calculations suggest that Jupiter, our solar system's largest planet, was once more than double its current size.

As the most massive planet in the Solar System, and first to form, Jupiter’s gravity shaped the formation of everything else.

Jupiter wasn’t always the planet we know today—it was once twice as big, had a magnetic field 50 times stronger, and its ...

A new study has revealed that Jupiter—our solar system’s largest planet—was once even more enormous than it is today. In fact ...

The inner planets, including Earth ... before finally settling into their final orbits. For instance, Neptune migrated outward, switching places with Uranus, and pushed a lot of the small, icy bodies ...

Are planets in the solar system that are closer to the Sun older ... Uranus and Neptune were next, within 10 million years. The inner planets, including Earth, took at least 100 million years ...

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...