Hydra is the outermost of Pluto’s known moons, and until now, we’d only ever seen it as a faint pixel of light. Today, planet Earth gets its first real glimpse of this tiny, enigmatic satellite. This ...

Greek mythology guides the naming convention for Pluto’s two most recently identified moons, more may be discovered when the New Horizons spacecraft flies past Pluto in July 2015. Tonight marks the ...

The seven-headed Hydra of Greek mythology was a tough monster to be up against: every time a head was cut off, two more promptly grew in its place.* Agriculture Secretary Ezra Taft Benson sometimes ...

One of the fiercest creatures in ancient Greek mythology was the Hydra. The serpent beast had many heads, poisonous breath, and venomous blood. Hercules, the Greek mythological hero, was tasked to ...