How much of the solar system's mass is in the Sun?
The Sun contains about 99.8% of all the mass in our solar system.
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- What is Valles Marineris?
“Valles Marineris, a canyon system on Mars, is about as long as the US is wide.”
Reference: NASA
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Why is Mars red?
Mars is red because of iron oxide, or rust, on its surface.
How long does sunlight take to reach Earth?
Sunlight takes about 8 minutes and 20 seconds to reach Earth, so we always see the Sun as it was a few minutes ago.