Science | Space | The Solar System

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.

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Could I see a flashlight beam from Earth on the moon?

If I was on the moon and the earth was black (no lights were on) and a flashlight was turned on facing the moon, would I see the light? If I couldn't, would there be any way to detect any residual matter that came from the light on Earth or does light die after a certain distance?


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? See more »

Can the curvature of the Earth only be seen from outer space?

Can the curvature of the Earth only be seen from outer space? See more »