How big was the universe when it started?
When the universe started in the explosive Big Bang around 13.7 billion years ago, it was smaller than the period at the …
An upside down portrait of Earth
The Blue Marble photograph, Earth’s famous portrait from 1972 taken by Apollo 17 was originally shot “upside down”.
How was the webcam invented?
Cambridge scientists invented the webcam so they could see if the coffee pot was full or not from different rooms.
How long after the first airplane did man step on the moon?
Only 66 years separate the first flight of the Wright brothers from Apollo’s landing on the moon.
