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 ...

This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most urgent threats facing our environment, from climate change to ...

While Earth Day, observed annually on April 22, may not be a major holiday that’s widely celebrated outside of classrooms, it’s more than worthy of honoring. After all, without Earth, where would we ...

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 ...

Earth Day is one of the most popular and widespread nonreligious holidays in the world. Although the event was primarily based in the United States, by 2009 the coordinators for Earth Day helped gain ...

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 ...