Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of ...

Normally when a medium-size star dies, it blasts away the bulk of material in its system. The Hubble discovery was surprising ...

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, said Renu Malhotra, a planetary scientist at the University of Arizona who has ...

Later, it was reclassified as a dwarf planet, yet its mysterious charm has not diminished at all. Why is that? Because Pluto's complex and elusive terrain is like a mysterious key that may hold the ...

The astronomical phenomenon of Pluto's opposition reoccurred on the 25th, providing astronomy enthusiasts with the best opportunity to observe this distant celestial body throughout the year. During ...