The water has probablyphotodissociated, and the free hydrogen has beenswept into interplanetary spaceby thesolar windbecause of the lack of aplanetary magnetic fieldVenus' surface is a dry desertscape interspersed with slab-like rocks and is periodically resurfaced byvolcanism. As one of the brightest objects in the sky, Venus has been a major fixture in human culture for as long as records have existed. It has been made sacred to gods of many cultures, and has been a prime inspiration for writers and poets as the "morning star" and "evening star". Venus was the first planet to have its motions plotted across the sky, as early as the second millennium BC