Featured Article: What are Saturn's rings made of?
Although other planets have rings, none are as spectacular as Saturn's. What makes the planet's stratified rings, and how did they get there in the first place? See more »
the solar system library
In the Solar System Channel, you can explore the planets and celestial objects around our own sun. Learn about topics such as Mars, Jupiter and the Moon.
If nature abhors a vacuum, then why doesn't the vacuum of space suck away all of the Earth's atmosphere?
If "nature abhors a vacuum," then why doesn't the vacuum of space suck away all of the Earth's atmosphere?
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