Composition of Mercury
Mercury is a terrestrial planet, like like all of the 4 inner planets: Mercury, Venus, Earth and Mars. It's the…
Surface of Mercury
The surface of Mercury is marred by an impressive number of craters. The cratering is deeper than on most terrestrial…
Symbol for Pluto
The symbols of the planets, Moon and Sun are used in both astronomy and astrology. The symbol for Pluto is…
Gaia Hypothesis: Could Earth Really be a Single Organism?
Can a planet like Earth be considered a single living organism? After all, the human body is composed of hundreds…
Spirit’s Dust Dilemma
Steve Squyres and the Mars Exploration Rover team knew from the beginning that dust could cause a problem for the…
Shape Shifting Robot Can Reassemble After Crashing Apart
It's fairly certain that the Mars Polar Lander and the Beagle lander crash landed on Mars, never to be heard…
Where In The Universe?
The past couple of weeks we've had a 'mystery' image, and asked our readers to guess what world in our…
What Color is Mercury?
Unlike all of the other planets in the Solar System, Mercury is just bare rock. It does have a tenuous…
Titan Launch Pad Tower Blown Up at Cape Canaveral (Gallery)
Cape Canaveral's Titan launch pad gantry was demolished on Sunday. The tower was built in the 1990's to support the…
Cassini Watches Five-Month-Long Lightning Storm Rage on Saturn
Cassini scientists know for sure their spacecraft isn't in Kansas anymore. Cassini's been keeping an eye on a powerful electrical…