Portal:Solar System/Did you know/13


 * ... that the first engineering analysis of a human mission to Mars (artist's conception pictured) was made by Wernher von Braun in 1948, which included ten ships with seventy crewmembers?


 * ...that water vapor is probably present in the tenuous atmosphere of Mercury, being brought to the planet by comets?


 * ...that the Tagish Lake meteorite originally came from a part of the asteroid belt which existed when the Solar System was being formed?


 * ...that the trans-Neptunian object Eris (formerly known as ) is native to a distant region of the Solar System known as the scattered disc?