What is the Universe? - NASA Science
The universe contains all the energy and matter there is. Much of the observable matter in the universe takes the form of individual atoms of hydrogen, which is the simplest atomic element, …
Explore the Universe with Interactives and Videos
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, …
Universe - Wikipedia
The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including …
Universe - NASA Science
New Year, New Era: Very Cold Detectors Reveal the Very Hot Universe of X-Ray Astronomy NASA's XRISM mission is transforming X-ray astronomy with advanced detectors operating at …
What is the universe made of? - Center for Astrophysics
The universe is expanding, carrying galaxies with it like flotsam on a fast-flowing river. This expansion also stretches the wavelength of light, which astronomers call cosmological redshift, …
Defining and measuring the observable universe and the whole universe ...
Well, the observable universe is currently 93 billion light years across. The whole universe is probably infinite. Does the universe have an edge? The observable universe does. It's 46 …
A Logarithmic Map of the Entire Observable Universe - Visual …
2022年7月1日 · The universe is currently dated to be around 13.8 billion years old, and nothing in the universe can travel faster than the speed of light. When accounting for the expansion of …
Hubble Skymap - NASA Science
The Hubble Skymap puts the night sky at your fingertips any time of day. Roam the Milky Way to find a selection of galaxies, stars, nebulae and more, and click for a Hubble’s-eye-view of each …
Universe | Definition & Facts | Britannica
2025年1月14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 …
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 …