If two pieces of metal touch in space, they become permanently stuck together.
808
It would take more than 150 years to drive a car to the sun.
569
Summer on Uranus lasts for 21 years.
358
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Sound doesn't travel in space.
255
Jupiter is bigger than all the other planets combined.
254