What's the sun?
This is the ninety-first lesson of our Big Course. Along the way to the answer, you'll get a reminder on whether "up" and "the sky" are real, get "embiggened" up to Gigaworld to see how big the Sun (and the planets, and the other stars) really are
What color is the sun?
This is the ninety-second lesson of our Big Course. Along the way to the answer, you'll understand how four seemingly-unrelated facts about the world (the sky is blue, the Sun is yellow, mountains are blue, and the sunset is red) are ACTUALLY THE SAME THING.
How could we power the whole world with only sunshine?
This is the ninety-third lesson of our Big Course. Along the way to the answer, you'll learn why you might not want to buy a solar-powered car, how much of the world you would need to cover in solar panels to give us the electricity we need, and what the single biggest problem is with solar energy.
Coming soon!
Coming soon!
Coming soon!
