Add Yahoo as a preferred source to see more of our stories on Google. "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." While we love the Earth every day, ...

There are a variety of holidays to celebrate throughout the month of April, including Earth Day, which falls on Wednesday, April 22, this year. A day dedicated to our planet, Earth Day is recognized ...

The Earth is 4.54 billion years old. If we start counting every second without a stop, it will take us a very long time to reach such a huge number. Scientists have not come up with this huge number ...