Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. [1] . It contains ultra-low levels of particle densities, constituting a near-perfect …

Apr 1, 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. …

Feb 17, 2022 · From our Earth -bound perspective, outer space is most often thought to begin about 62 miles (100 kilometers) above sea level at what is known as the Kármán line. This is …

Apr 3, 2025 · Learn about the inner planets, the outer planets, and the dwarf planets. Explore the Planets

Dec 28, 2022 · What is Outer Space? For all intents and purposes, outer space is basically what lies beyond the Earth’s atmosphere. For example, the Sun, planets, stars, and galaxies - all …

May 24, 2023 · The term outer space refers to anything beyond Earth, even things very close to home in low-Earth orbit, which begins as low as 100 miles (160 kilometers) above the planet.

Space, or outer space, is a vast, near-perfect vacuum largely devoid of matter. This vacuum contains very few particles compared with Earth's atmosphere. However, it's not entirely …

Outer space, commonly shortened to space, is the near-vacuum between celestial bodies. [1] It is where all of the planets, stars, galaxies and objects are found. It is the expanse that exists …

Outer space (or simply space) is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect …

Explore the 3D world of the Solar System. Learn about past and future missions.