The Universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. While the spatial size of the. Universe is the name that we use to describe the collection of all the things that exist in space. It is made of billions of stars and planets and enormous clouds of. From its expansion and acceleration to dark matter and energy, the universe continues to surprise astronomers. Here are some of the most.
Take the age of the universe. A century ago, we could say only that the universe was very old. There was no way to find a precise number. Now. The Universe is everything we can touch, feel, sense, measure or detect. It includes living things, planets, stars, galaxies, dust clouds, light, and even time. One thing we know about the universe is that it's really big. Another is that thinking about it and trying to understand it will make your brain hurt.
The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang. This theory was born of the. Travel across the universe (or is it universes?) to see stunning images of Saturn's rings, hear haunting sounds from distant black holes and catch an infectious.