Earth exists in space. The key difference is that here there is something (matter), whereas in space there is much less. You could say earth's atmosphere separates earth from the hard vacuum of space, and nothing exists between the lunar surface and space. But space essentially describes the three spatial dimensions occupied by our planet, its primary (the sun), and all we can perceive. Most of it is empty--hence "space."
When the external tank separates from the space shuttle after the main engines shut down, it re-enters Earth's atmosphere and disintegrates. The tank is not designed to survive re-entry and burns up as it falls back to Earth, with any remaining debris falling into the ocean.
PADDING
The Earth is NOT suspended in space. The Earth is in ORBIT round the Sun.
The line that separates the light and dark portions on Earth is called the terminator line. On the Moon, this line is known as the lunar terminator or dusk line. It is where sunlight transitions into darkness as a result of the rotation of the Earth and the Moon.
If he is aboard something that's in Earth-orbit, like the International Space Station or the Space Shuttle, then Earth's gravity is what's keeping him in orbit.
The atmosphere separates us. It is a pool of gases.
When the external tank separates from the space shuttle after the main engines shut down, it re-enters Earth's atmosphere and disintegrates. The tank is not designed to survive re-entry and burns up as it falls back to Earth, with any remaining debris falling into the ocean.
An astronomical unit is the average distance that separates two bodies in space. The two objects linked to an astronomical unit is the sun and the earth.
empty space
There is one line, the equator, that separates the northern from the southern hemisphere.
PADDING
Presence of body, mind, sound, space is what separates human world and heaven.
The equator is an imaginary line that separates the Earth into the Northern Hemisphere and the Southern Hemisphere.
the differentiation of earth is simply what separates the earth or keeps it together
The Equator.
Terminator is the twilight zone or "grey line" is a moving line that separates the day from night.The line around the Earth that separates the night side from the day side is called the "terminator".
The boundary that separates the Earth's crust and the cooler part of the mantle is called the Mohorovičić discontinuity or Moho. It marks the transition between the Earth's crust and the uppermost part of the mantle.