Add Yahoo as a preferred source to see more of our stories on Google. A rare kind of meteorite known as enstatite chondrite resembles Earth's composition roughly 4.5 billion years ago. The key to ...

Water is essential when it comes to life on Earth, but how exactly it formed on the planet remains a mystery. Past evaluations have proven that the initial days of Earth were too hot to retain ice. At ...

With an abundant supply of liquid water, Earth is one of the few places in the universe where life can develop and flourish. But scientists have long wondered where exactly all of our life-giving ...