Beyond Pluto lies a collection of frozen worlds that challenge traditional ideas of what planets should be. This episode explores distant dwarf planets with strange shapes, hidden moons, and extreme ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

In 1.2 million years, the orange dwarf Gleisa 710 will pass through the outer reaches of our solar system, becoming a brilliant point in the night sky while nudging the distant Oort Cloud. Though ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

Wednesday is "Pluto Day," because – yes, of course there is a day for that. And, while celebrating the celestial object that ...

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

Step outside just after sunset and you may catch an unusual sight: six planets strung across the sky in a gentle arc. The ...

Rocky planets are typically found near their star, while gas giants form farther out — not the other way around. When you purchase through links on our site, we may earn an affiliate commission.