If two pieces of metal touch in space, they become permanently stuck together.
808
It 'snows' metal on Venus.
13
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
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
Sound doesn't travel in space.
255
A comet's tail always points away from the sun.
2