No matter what anyone says, Pluto is a planet, according to Kirby Runyon. Europa, commonly known as a moon of Jupiter, is, too. So are the Earth’s moon and more than 100 other celestial bodies in our solar system denied this status under the prevailing definition of “planet.” The InternationalContinue Reading

Compared to its celestial neighbours Venus and Mars, Earth is a pretty habitable place. So how did we get so lucky? A new study sheds light on the improbable evolutionary path that enabled Earth to sustain life. The research, published this week in Nature Geoscience, suggests that Earth’s first crust,Continue Reading