Pluto

Percival Lowell knew something else was out there. Based on his calculations, the American businessman and astronomer was convinced that an unknown ninth planet was responsible for the wobbling orbits of Uranus and Neptune. For more than a decade until his death in 1916, Lowell ...read more

As its spacecraft New Horizons prepared to make its history-making flyby with Pluto on the morning of Tuesday, July 14, NASA released a high-resolution image of the dwarf planet, captured by New Horizons before it went out of contact with Earth the previous night. Taken when the ...read more