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
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Astronauts cannot burp in space.
232