STEM与日常科技·英语30篇（3）
19 / 30
正在校验访问权限...
Mars Rovers and Dust-Induced Power Loss
火星车与沙尘导致的电力衰减
-
NASA's Perseverance rover uses a radioisotope thermoelectric generator for steady power.
-
Solar-powered rovers like Spirit and Opportunity rely entirely on sunlight hitting their panels.
-
Martian dust storms can coat solar panels and reduce energy absorption by over 90%.
-
Even light dust accumulation cuts efficiency because Mars lacks rain to wash it off.
-
Engineers design panels with slight tilts and electrostatic coatings to repel some particles.
-
Dust devils sometimes clean panels naturally, causing unexpected power surges during missions.
-
Power loss forces rovers into low-energy 'sleep modes' until sunlight returns.
-
Scientists monitor panel output daily to predict operational windows for science activities.
-
This challenge shows why future Mars bases may need nuclear or wind-assisted power.
-
Understanding dust behavior helps plan better energy systems for extraterrestrial exploration.