What is Space?

Space is an almost perfect vacuum, nearly void of matter and with extremely low pressure. In space, sound doesn't carry because there aren't molecules close enough together to transmit sound between them. Not quite empty, bits of gas, dust and other matter floats around "emptier" areas of the universe, while more crowded regions can host planets, stars and galaxies.

Space is also around 80% filled with "Dark Matter" which actually cannot be studied because it cannot emit light, energy, or sound, but there is overwhelming evidence from sscientists that it makes up the vast majority of the universe. Visit Space.com for a more detailed explanation of what Space is and what it contains!