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Feb 17, 2022 · Space is the zone above and around our planet where there is no air to breathe or to scatter light. Space is a vacuum, but it is far from empty.
Space is a three-dimensional continuum containing positions and directions. [1] . In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. [2] .
Feb 26, 2010 · First, some simple answers: space is everything in the universe beyond the top of the Earth’s atmosphere – the Moon, where the GPS satellites orbit, Mars, other stars, the Milky Way,...
What is space? Access the image. In space, no one can hear you scream. This is because there is no air in space – it is a vacuum. Sound waves cannot travel through a vacuum. 'Outer space' begins about 100 km above the Earth, where the shell of air around our planet disappears.
May 31, 2024 · space, a boundless, three-dimensional extent in which objects and events occur and have relative position and direction. Space is treated in a number of articles. For a philosophical consideration of the subject, see metaphysics. For a discussion of the relativity of space and time, see relativity.
The universe is everything. It includes all of space, and all the matter and energy that space contains. It even includes time itself and, of course, it includes you.
Space, most generally, might be described as the boundless container of the universe. Its contents are all physical things that we know of, and more. To describe the contents of space, we use terms of distance, mass, force, motion, energy, and time.
The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown.
Collections of stars, planets, and vast clouds of gas and dust bound together by gravity. featured story. Coming in Hot – NASA’s Chandra Checks Habitability of Exoplanets.
Apr 27, 2019 · A Short Summary Of What ‘Space’ Is Thought To Be! When most people talk about space, they are referring to the region beyond Earth’s atmosphere (which ends about 100 km above Earth’s surface) and extends to the planets, stars and distant galaxies.
