Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
A comet's tail always points away from the sun.
2
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Only 55% of Americans know that the sun is a star.
986
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221