The Earth gets 100 tons heavier every day due to falling space dust.
673
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Buzz Aldrin’s mother’s maiden name was Moon.
9
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
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 last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
More than 20 million meteoroids enter Earth's atmosphere every day.
139