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

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones?

Stars whizzing by our solar system could cause more havoc than astronomers ... be commonplace in other planetary systems. While the orbits of the planets were once thought to be as predictable ...

The mission has a Narrow Field Imager (NFI) and three Wide Field Imagers (WFIs). The NFI snaps pictures of the corona around ...

"This result suggests that in Jupiter-like orbits, most planetary systems may not mirror our solar system," said co-author Youn Kil Jung of the Korea Astronomy and Space Science Institute ...

Why doesn’t our solar system have sub-Neptune exoplanets and what can they teach us about planetary formation and evolution?

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The solar system is our cosmic neighborhood, made up of the sun and everything that orbits it — planets, moons, asteroids, comets, and even dust and gas. The order of the planets in the solar ...

The ongoing search for an additional planet at the solar system's edge has identified a ... not exist without destabilizing their respective orbits, Brown explains: "It's kind of funny that ...

Picture this: a small audience is quietly ushered into a darkened room. They gasp in awe, as a brilliant night sky shines ...

In 2016, astronomers proposed that our solar system could harbor a stealthy ninth planet based on a strange clustering of orbits they detected among distant Kuiper Belt objects. They suggested the ...