The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
The light hitting the earth right now is 30 thousand years old.
163
A comet's tail always points away from the sun.
2
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6