Unverified50% confidenceFactExact time
A cable hanging downward from Phobos would have a lower end moving at only about 500 meters per second (approximately Mach 1.5) relative to the Martian surface, far below the several kilometers per second required for a rocket to reach orbit.
1
Sources
50%
Confidence
Long-term
Relevance
10/4/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedPhobos orbits approximately 6,000 kilometers above the Martian surface, with an inclination of about 1 degree and an orbital period of approximately 7 hours and 39 minutes, which is faster than Mars's rotation period of 24 hours and 37 minutes, causing it to rise in the west and set in the east.73% similarUnverifiedAn orbital flight requires the spacecraft to reach the first cosmic velocity of approximately 7.9 km/s at an altitude of about 200 km or above.69% similarUnverifiedNASA的洞察号着陆器曾记录到火星地表风速可达每秒30米以上67% similarUnverified好奇号火星车对巴格诺德沙丘群的观测证实火星沙丘以每年约数十厘米的速度迁移65% similarUnverified火星上的有效搬运风速阈值约为地球的十倍65% similar
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