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
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
It would take more than 150 years to drive a car to the sun.
569
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
NASA invented baby food as we know it today.
7
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31