The phrase "planet surface" is correct and usable in written English.
You could use it when referring to the surface of a planet or moon. For example, "The human astronauts were the first to walk on the planet surface."
In both you start on the planet surface before battling your way onto an enemy spaceship for the big showdown.
The Martian surface is littered with rocks, which I presume are from asteroids or other objects hitting the planet surface.
Previous and current Mars rover missions have noted a nearly ubiquitous presence of duricrusts on the planet surface.
He added more noise to the formula, rotated the shapes it made, played with their scale, buried them beneath the planet surface.
Surface albedo is a key parameter in the Earth's energy balance since it affects the amount of solar radiation directly absorbed at the planet surface.
Continuous measurements of atmospheric properties such as wind, temperature and pressure could be obtained along with detailed images of the planet surface.
He is currently developing the next generation of instruments for the in situ study of terrestrial planet surface-atmosphere interactions, and planetary atmospheres in general.
The astronauts would explore planet surfaces in buses shaped like eggs and pocked with portholes.
Players will get to fly X-Wings, TIE Fighters and the Millennium Falcon (but only just above the planet surfaces – not in space).
The main function of these vehicles consists of moving across planet surfaces, and drilling and retrieving samples for in-situ analysis.
Although Neptune lies half again as far from the Sun as Uranus, and receives only 40% its amount of sunlight, the two planets' surface temperatures are roughly equal.
