The image that changed our view of the Universe forever
Time machines already exist and they're in the guise of space telescopes. In 1995, one such time machine called Hubble peered into a small patch of empty sky for ten days straight.
For the scientists on Earth, it was a huge, expensive gamble.
What emerged from Hubble's patient gaze was a glittering array of 3,000 galaxies and billions of years of history staring right back at us.
Made with thanks to the Space Telescope Science Institute, Baltimore.
