Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary ...

For instance, Neptune migrated outward, switching places with Uranus, and pushed a lot of the small, icy bodies into the ...

driven off from the inner planets condensed in a ring or disc beyond the snow line in the outer regions of the young solar system. Gravity pulled these materials together, and that is where we ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

The eight planets in our solar system orbit the sun in roughly the same plane, because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...

(bursting) "Solar System: Wandering Worlds," right now on ... We think that Ceres formed beyond what is known as the ice line for ammonium ices. NARRATOR: Beyond this ice line, ammonia freezes ...

A planet parade is when several of our solar system's planets are visible in the ... term that applies when four or more planets line up in the night sky at once. It's not an official astronomy ...

The eight planets in our solar system orbit the sun in roughly the same plane because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...

The team will now investigate even further back in time to find other times the solar system crossed paths with dense interstellar clouds and to determine if these also line up with ice ages.