interplanetary space

Thesaurus

Noun

1.

interplanetary space - the part of outer space within the solar systemasteroid belt - the region of interplanetary space between Mars and Jupiter where most asteroids are foundouter space, space - any location outside the Earth's atmosphere; "the astronauts walked in outer space without a tether"; "the first major milestone in space exploration was in 1957, when the USSR's Sputnik 1 orbited the Earth"region, part - the extended spatial location of something; "the farming regions of France"; "religions in all parts of the world"; "regions of outer space"interplanetary medium - interplanetary space including forms of energy and gas and dust