AWESOME FACTS ABOUT EVERYTHING XVI

1. Mercury and Venus have no moons.

2. The Earth spins at 1,000 miles per hour at the equator.

3. The most abundant metal in Earth's crust is aluminum.

4. Each season on Uranus lasts 21 years due to the fact that the planet's axis is tilted at 98 degrees.

5. According to scientists, the weight of the average cumulus cloud is 1.1 million pounds, or around 551 tons. The weight is spread out into  million of droplets over a large space. The clouds are less dense than the air below them, so they appear to float weightlessly in the sky.

6. Each day on Earth is around 24 hours. But when our planet was first formed, a day was only 6 hours long. That's due to the fact that the Earth used to spin much faster. According to NASA, our days get 0.0017 seconds longer every 100 years.