What Is Space

Physical space is often conceived in three linear dimensions although modern physicists usually consider it with time to be part of a boundless four dimensional continuum known as spacetime.

What is space. In space no one can hear you scream. How to use space in a sentence. The portion or extent of this in a given instance.

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.

Extent or room in three dimensions the space occupied by a body. Space is a vacuum but it is far from empty. First some simple answers.

When you look up at the night sky you see stars and sometimes the moon and the brighter planets. Space is the boundless three dimensional extent in which objects and events have relative position and direction. Away from city lights on a clear night you might see the beautiful band of the milky way stretching across the sky.

Let s take a closer look. Space is the zone above and around our planet where there is no air to breathe or to scatter light. Is there anything else up there in space.

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.