For over two decades, astronomers have been perplexed by the existence of planetary-mass objects, or PMOs, celestial bodies ...

An international research team led by the University of Vienna has discovered that the solar system traversed the Orion ...

On Feb. 28, seven planets—Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn—will all grace the early evening sky.

Deep in space, mysterious wanderers roam freely — of planetary masses yet not hosted by stars. These celestial nomads, called ...

Could this medium-sized, app-free star-projector-night-light combo make the perfect gift for a space fan? We find out.

Star clusters are formed when gravity pulls young stars together, forcing them to orbit each other. A star cluster can ...

On a dark and clear night, the sky can seem filled with stars, some shining brighter than others. But a few of those bright ...

A groundbreaking study published in Science Advances sheds new light on the mysterious origins of free-floating ...