Liberal Party of Canada announces French, English leadership debates in Montreal
PoliticsThe Liberal Party of Canada announced Saturday afternoon it will host two leadership debates — one in English and another in French — in...
Unexpected Mechanism Explains Formation of Pluto-Charon System
Planetary scientists at the University of Arizona say they have discovered an entirely new type of cosmic collision. Pluto and Charon are the largest binary system in the known population of trans-Neptunian objects in the outer Solar System. Their shared external orbital axis suggests a linked evolutionary history and collisional origin. Their radii, 1,200 km and
