The love story between Pluto and Charon may ... that saw them conjoined for a period of time, billions of years ago, before separating into a stable, long-term orbital dance.

This was revised downward in a 1968 study that suggested that Pluto's mass was 18% of Earth's. Knowing Charon's orbital period meant that astronomers could calculate good estimates of both objects ...

The love story between Pluto and Charon may have started ... together in a collision that saw them conjoined for a period of time, billions of years ago, before separating into a stable, long-term ...

University of Arizona researchers have unveiled evidence of romance at the farthest reaches of the solar system: a cosmic ...

Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

Great question! Assuming you’re referring specifically to the orbital period — in other words, how long comets take to make one revolution around the Sun, or a cometary “year ...