3 days ago · Universe, the whole cosmic system of matter and energy of which Earth is a part.

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 …

Jan 5, 2026 · 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 …

May 13, 2025 · Welcome to a journey through scale, time, and wonder—a beginner’s guide to understanding the universe. Let’s begin at the smallest level—the atom. For centuries, philosophers …

4 days ago · NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into one dazzling mosaic.

Dec 13, 2025 · The Universe includes space, planets, galaxies, stars and every other object outside the Earth's atmosphere that we know and don't know. The difference between space and the Universe is …

As we can only observe what happens in our universe, we may never know whether there are other universes out there besides our own. Yet some scientists are set on finding out.

The term Universe refers to everything within the Cosmos – planets, stars, galaxies, light and even the vacuum between these entities.

The universe is the entirety of all existing physical entities, including planets, stars, galaxies, and energy, as well as space itself. It encompasses everything that exists, from the smallest subatomic particles …

Nov 26, 2024 · Here’s an overview of its key characteristics and concepts: 1. Definition and Scale. The universe is infinite in extent (or at least extremely vast), containing all known and unknown …