A ring or sphere could, apparently, be stable if surrounded by the right sizes and gravities of other stars.

The countdown for the year's first total lunar eclipse begins. The celestial event, which will see the moon change to rusty red hues, will occur in the U.S. on the night of March 13-14.

continuously scanning the celestial sphere around our planet with a heat-sensing camera that serves a dual purpose. Every six months of its initial two-year mission, SPHEREx will generate a ...