It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to …

Dec 3, 2025 · Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more. Concentrations of matter with gravity so powerful not even light can escape. Collections …

Dec 8, 2025 · Universe, the whole cosmic system of matter and energy of which Earth is a part.

Universe Map is your definitive guide to galaxies, stars, and cosmic structures — mapped, analyzed, and optimized for discovery and research.

Aug 31, 2025 · It tells us that the universe began nearly 13.8 billion years ago in a cataclysmic event known as the Big Bang. From a state of unimaginable density and heat, space itself expanded, …

23 hours ago · Big Bang science explains the universe origin, key evidence, unresolved tensions, and how new James Webb data is reshaping cosmic history.

The universe is filled with an amazing variety of celestial objects. Find out about astronomy through history, how we understand the sky, constellations, sky maps and stars, exoplanets, galaxies, and …