Did you know that what we are getting from outer space is a past that happened really long ago? Did you know that what we are getting from outer space is a past that happened really long ago? Just look up at the sky and you will see billions of stars around us. But don't forget about one important nuance in physics that you should keep in mind. It's called the Speed of light. Everything you see is limited to it. It's equal to 299,792 kilometers per second or 670,616,629 mph. How fast is it? it depends. If you compare this value to the speed of a racing car 300 km/h (190 mph) or even the top speed of a fighting jet 1,975 (1,227 mph) you will be sure that it's super fast. But if you compare the Speed of light to the size of our Galaxy you will be shocked how ridicules it is. By the way we live in the Milky Way Galaxy. What? Did you know that? Ok. So every time you share your location with someone you should add a little bit more than just your address and your country. For example: I live in Saint Petersburg, Russia, Planet Earth, Solar System, Milky Way. So you will never miss your Space Pizza delivery from the Alien Pizza Hut (aka flying saucer). Actually it's even more complex than that. But I will not get into the details. Let's get back to the Speed of light. In the terms of the light it means how far your can see. For example if you will have top notch super freaking awesome glasses that will make you to be able to see so far as the distance that the Light travels in one second which equals to 1,079,252,848 kilometers or 670,616,629 miles. You will be amazed how many things you can see around you. But it's just far as you can get it. Because to see more then that you will need to wait for another second to pass by until the Light will travel closer to you. What? Yes, the light can't get past it's speed so you can't see further than 1,079,252,848 kilometers or 670,616,629 miles you need every time to wait! How insane it is? It's pretty insane. Because it's not that far at all. The size of our Milky Way Galaxy is 100,000 light years across. So you need to wait one hundred thousand years to be able to see the whole galaxy. So what does it mean in the terms of humanity? We are screwed! Because every image what we see from the very deep space is outdated! Just think about it. No matter which super telescope you use you can't get past the limits of the Speed of Light. By the way in the image bellow you will see another amazing fact about our human being's lives in terms of universe. But that's for the another article my friend.