The Kuiper Belt object Altjira was thought to be a binary, but closer analysis suggests that it is highly likely to be a triple system This raises the question of the three-body problem; if Altjira ...

Astronomers may have just identified a rare example of a "three-body problem" hiding in plain sight beyond the solar system's ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's rendering of Kepler 16-b and its two suns. A rocket launch. Our nearest stellar neighbor. A Netflix show. All of these ...

I’ve yet to meet a physicist that didn’t believe in the beauty of the general theory of relativity—Einstein’s description of gravity as the curvature of spacetime. After all, it’s consistently ...