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What is a space in English?
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What is space in physics?
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]
SPACE definition: 1. an empty area that is available to be used: 2. the area around everything that exists…. Learn more.
- Space radiation invisible to human eyes. The majority of space is relatively empty, with just stray bits of dust and gas floating around. This means that when humans send a probe to a distant planet or asteroid, the craft will not encounter "drag" in the same way that an airplane does as it sails through space.
- Dark matter and energy. There remain two giant mysteries about space: dark matter and dark energy. While scientists have provided extensive evidence for the existence of dark matter and dark energy, they are each still poorly understood as, so far, scientists cannot directly observe them and can only observe their effects.
- Black holes. Smaller black holes can form from the gravitational collapse of a gigantic star, which forms a singularity from which nothing can escape — not even light, hence the name of the object.
- Stars, planets, asteroids and comets. Stars (like our own sun) are immense balls of gas that produce their own radiation. They can range from red supergiants to cooling white dwarfs that are the leftovers of supernovas, or star explosions that occur when a big one runs out of gas to burn.
4 days ago · 1. variable noun. You use space to refer to an area that is empty or available. The area can be any size. For example, you can refer to a large area outside as a large open space or to a small area between two objects as a small space . ...bits of open space such as fields and small parks.
space noun (EMPTY PLACE) Add to word list. A2 [ C or U ] an empty area that is available to be used: space for Is there any space for my clothes in that cupboard? make space I need to make (some) space for Mark's things. space between When the roads are wet, you have to leave plenty of space between you and the car in front.
noun. the unlimited or incalculably great three-dimensional realm or expanse in which all material objects are located and all events occur. the portion or extent of this in a given instance; extent or room in three dimensions: the space occupied by a body. extent or area in two dimensions; a particular extent of surface:
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.
