Human bodies are exquisitely tuned to one world, and it is not a forgiving one. Strip away our technology and even Earth would kill us in minutes in the wrong place, yet our home planet is still the ...

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 ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Astronomers have found a distant celestial body — ...