Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

Earth is the only planet in our solar system not named for a Roman god or goddess. Mercury, Venus, Mars, Jupiter and Saturn were named during ancient times, as they were visible to the human eye. For ...

Boffins have been puzzled for decades about two strange blots under our planet, but now some new research could finally be ...

For the entire duration of human existence, we have been trying to make sense of the planet we have been living on, called Earth. Humans have come quite far in understanding the small blue planet we ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. This article is more than 3 years old. Illustration of an ...