Universe - Wikipedia
Today the universe has expanded into an age and size that is physically only in parts observable as the observable universe, which is approximately 93 billion light-years in diameter at the present day, while the spatial size, if any, of the entire universe is unknown.
What is the Universe? - NASA Science
The universe is nearly 14 billion years old, our solar system is 4.6 billion years old, life on Earth has existed for maybe 3.8 billion years, and humans have been around for only a few hundred thousand years. In other words, the universe has existed …
The Map of the Universe
This map shows a slice of our Universe. It was created from astronomical data taken night after night over a period of 15 years using a telescope in New Mexico, USA. We are located at the bottom. At the top is the actual edge of the observable Universe. In between, we see about 200,000 galaxies. The full map is actually a sphere.
Interactive 3D Map of the Universe - In-The-Sky.org
An interactive three-dimensional chart of the nearest stars and galaxies to the Sun. Rotate and zoom the Universe to see the structure of the cosmos.
Scale of the Universe
Scale of Universe is an interactive experience to inspire people to learn about the vast ranges of the visible and invisible world. Click on objects to learn more. Use the scroll bar to zoom in and out. Start Exploring. Audio Recommended.
Universe | Definition & Facts | Britannica
2024年9月27日 · universe, the whole cosmic system of matter and energy of which Earth, and therefore the human race, is a part. Humanity has traveled a long road since societies imagined Earth, the Sun, and the Moon as the main objects of creation, with the rest of the universe being formed almost as an afterthought. Today it is known that Earth is only a ...
Universe Images - NASA Science
Astronomers using the Hubble Space Telescope assembled a comprehensive picture of the evolving universe – among the most colorful deep... Using data from NASA's Fermi Gamma-ray Space Telescope, scientists discovered a gigantic, mysterious structure in our galaxy.
Universe - NASA Science
Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more.
ViewSpace
ViewSpace is a free, web-based collection of digital interactives and videos highlighting the latest developments in astronomy and Earth science. ViewSpace gives you the opportunity to explore our planet, solar system, galaxy, and universe. Provided free with the support of NASA, ViewSpace is developed by a team of scientists, educators, and ...
Observable universe - Wikipedia
The observable universe is a spherical region of the universe consisting of all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time; the electromagnetic radiation from these objects has had time to reach the Solar System and Earth since the beginning of the cosmological expansion.