but since our planet was formed around 4.6 billion years ago, the length of a day has been gradually growing. A day is the time period of a full rotation of the Earth with respect to the Sun.

Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished together by gravity. That same cloud gave rise to our entire solar system, including our star, the sun.

We came across a superb infographic released by Giraffe, who are childcare and early learning specialists, which states 50 awesome facts about Earth. The first one that caught our eye is that ...

3. It is more about rebuilding connection than just switching off - Earth Hour is the moment when local and global communities unite and switch off to show they care about the future of our planet. 4.

Elephants are the largest land animals on Earth, and they're also one of the ... They can grow to be 10 to 13 feet (3 to 4 meters) tall, and they weigh 4 to 7 tons (3,600 to 6,40 kg) — about ...

In honor of Earth Day, the Giraffe Blog has put together 50 awesome facts about space, the atmosphere, the sea, and what's under the earth. It's an easy reminder that our Blue Marble is an ...