What environmental factor on Venus currently prevents long-term mobility for surface vehicles?

Answer

Incredibly harsh conditions of high heat and crushing atmospheric pressure.

Venus has surface conditions hot enough to melt lead (460°C) and pressure over 90 times that of Earth, making sustained traversal beyond the capabilities of currently implemented material science.

What environmental factor on Venus currently prevents long-term mobility for surface vehicles?

#Videos

What NASA's Rovers Have Found on Mars - YouTube

Spaceexplorationplanetsspace explorationroversMissionslandings