Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

Six planets are set to align on Saturday, creating a planetary parade that will be visible to sky-gazers across the globe.

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

At the farthest edges of the solar system, strange objects follow paths that defy easy explanation. This story investigates ...

Their observations of a faint, cool M-dwarf star called LHS 1903 revealed a system with a rocky world at its outer edge. LHS ...

Want to catch a glimpse of the planetary alignment from Florida? Here's what to know, including a list of official dark sky ...

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

Explore the story of our solar system’s formation, tracing how a vast cloud of gas and dust collapsed under gravity, collisions, and angular momentum to create a thin, spinning protolanetary disc.

Space scientists have revealed a new image of the mysterious space rock that passed through our solar system. Researchers ...

A rare celestial event is set to occur Saturday night, as six planets will line up across the sky, but will we even see them?

Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...