Off the top of your head, how far away from Earth do you think Mars is? If you were to ask me I’d say something ridiculous like, “a million billion miles.” Now there’s a rather fun way of answering that question: a pixel-by-pixel journey from Earth to Mars which takes place in your browser.
Created by David Paliwoda, How Far Is It To Mars? starts with the simple idea that the earth is 100 pixels wide, as you can see above. If the Earth is 100 pixels wide then it would be 3000 pixels to the Moon (which would only be 27 pixels wide, for comparison). You then zoom down the page, travelling toward Mars at a rate of 7,000 pixels per second. It honestly takes a good minute or two to get down to Mars, which ends up being 428,000 pixels away.
You really need to just click the link and do this for yourself. Using pixels and the browser as a way to measure scale is actually a really neat idea, one I haven’t personally seen before. I feel like we might start seeing more of this sort of exploration in the near future.