And the new research may offer evidence for a subsurface ocean beneath Pluto’s icy crust. Charon and Earth’s moon are both a large ... into a more distant orbit over time.

sending the moon into a stable orbit. Neither would have lost too much of its original material in the process. The incident could have created enough heat for Pluto to form an underground ocean ...

The first full moon of the year ... "We Don't Even Know If It's Over" Deep sleep can keep two big health problems at bay, new studies suggest Tennis' richest player is worth more than Roger ...