This is suggested by new simulations. Planets with giant orbits – such as the possible ninth planet in the solar system – are not an anomaly at all, but a normal by-product of the chaotic ...

Tianwen, which means "questions to heaven," is the name given to China's program of robotic Solar System exploration. Tianwen ...

In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and ...

The object’s aphelion—the farthest point on the orbit from the sun—is more than 1,600 times that of Earth’s orbit,” Institute ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

It’s possible that this object was first ejected to the Oort cloud, the most distant region in our solar system ... “Many extreme TNOs have orbits that appear to cluster in specific ...

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

16, 2025 — Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over ... of planets outside of our solar system, according to a new ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

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

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open image in gallery Is there a possible ninth planet in our solar system? Researchers say they ... They would make each other’s orbits unstable and could not exist together, he explained.