A virtual tour through our little space in the universe. Originally published by ESRI, republished with embed permission for educational, non-commercial purposes.
New analyses of the rings reveal how and when they were made, from what and whether they’ll last. Introduction Many dream of what they would do had they a time machine. Some would travel 100 million years back in time, when dinosaurs roamed the Earth. Not many, though, would think of taking a telescope with[…]
We’re not exactly sure what the universe was up to in the first few nano-moments into the big bang. One of the most remarkable things a human being can say is this: about 13.77 billion years ago, our entire observable universe was compressed into the size of a peach and had a temperature of over[…]
About 85% of all matter in the universe consists of a mysterious, invisible, and as-of-yet unidentified substance dubbed “dark matter.” Everything you have ever touched, seen, or tasted; the air you breathe; the ground on which you stand; and the constituents of your body all consist of a type of matter that is only a[…]