Discover why the solar system's planets are arranged as they are, shaped by formation conditions and planetary migration.

TEMPE, Ariz. a Quick: What’s the order of the planets in the solar system? Need a little help? Maybe the following mnemonic rings a bell: “My Very Educated Mother Just Served Up Nine Pizzas.” It’s ...

The Sun is an incandescent but benevolent dictator. For billions of years, it’s kept our star system well organized through the influence of its powerful gravity. All the planets revolve around it on ...

Something is throwing icy bodies past Neptune, and scientists have an interesting idea about what it might be. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

For decades, Uranus and Neptune have remained among the least understood planets in the solar system. Their distance from ...

China advances plans for dual solar system boundary missions China has published coordinated papers outlining dual missions ...

Why Can't We Find Planet 9? Deep in the outer reaches of our solar system, far beyond Neptune and Pluto, something massive is ...

Compared to our 4.5-billion-year-old sun, ​​the 20-million-year-old V1298 Tau is a stellar baby, making it ideal for ...

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...