In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
A comet's tail always points away from the sun.
2
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
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
The sun is 330,330 times larger than the earth!
190