Pluto’s newly discovered moons now have names. Known previously as P4 and P5, the International Astronomical Union has now given the fourth and fifth discovered moons of Pluto the namesKerberos and Styx. The small moons were discovered in 2011 and 2012 by the Hubble Space Telescope in preparation for the close passing of the New Horizons spacecraft by Pluto in 2015. Keberos is named for the many headed dog in Greek mythology that guards the entrance to the underworld, while Styx is named for the goddess who overlooks the mythological river that runs between the Earth and the underworld.
Gold’s many unique properties have secured it a central role in history and human development. For thousands of years it has been used as an ornament of kings, a currency and standard for global currencies, and more recently in a wide range of electronic devices.
If you think your hands-free car kit will prevent you from getting into an accident while on the phone, think again! New research outlines the dangers of any kind of distraction even when both hands are on the wheel.
Think Mercury is the hottest planet in the Solar System? Think again. Find out which planet is superheated, along with these 9 other incredible facts about the Solar System.
Why do we see those stunning lights in the northern- and southernmost portions of the night sky? The Aurora Borealis and Aurora Australis occur when high-energy particles are flung from the Sun’s corona toward the Earth and mingle with the neutral atoms in our atmosphere — ultimately emitting extraordinary light and color. Michael Molina explains every step of this dazzling phenomenon.
This visualization shows the Moon’s phase and libration at hourly intervals throughout 2013, as viewed from the southern hemisphere. Each frame represents one hour. In addition, this visualization shows the Moon’s orbit position, sub-Earth and subsolar points, and distance from the Earth at true scale.