Astronauts cannot burp in space.
232
Sound doesn't travel in space.
255
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
The heart of an astronaut actually gets smaller when in outer space.
216
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18