N008 mars-at-every-speed · our calc (straight line, constant speed, Mars not moving)
Run: 2026-10-16T18:08:39.614Z · node v24.21.0
Light speed: 670,616,629.4 mph

== CLOSEST: 54.6 million km = 33,926,867 miles (33.9 million miles) ==
rung | mph | hours | days | years | on-screen (2 sig figs) | sources row
Brisk walk | 3 | 11,308,955.70 | 471,206.49 | 1,290.093 | about 1,300 years | #5
Car on the highway | 65 | 521,951.80 | 21,747.99 | 59.543 | about 60 years | #6
Passenger jet cruise | 575 | 59,003.25 | 2,458.47 | 6.731 | about 6.7 years | #7
Speed of sound (sea level) | 761 | 44,581.95 | 1,857.58 | 5.086 | about 5.1 years | #8
Fastest humans ever (Apollo 10) | 24,791 | 1,368.52 | 57.02 | 0.156 | about 57 days | #9
Fastest spacecraft (Parker Solar Probe) | 430,000 | 78.90 | 3.29 | 0.009 | about 3.3 days | #10
Light | 670,616,629 | 0.05 | 0.00 | 0.000 | about 3 minutes (182.1 s) | #12

== FARTHEST: 401.4 million km = 249,418,397 miles (249.4 million miles) ==
rung | mph | hours | days | years | on-screen (2 sig figs) | sources row
Brisk walk | 3 | 83,139,465.52 | 3,464,144.40 | 9,484.310 | about 9,500 years | #5
Car on the highway | 65 | 3,837,206.10 | 159,883.59 | 437.737 | about 440 years | #6
Passenger jet cruise | 575 | 433,771.12 | 18,073.80 | 49.483 | about 49 years | #7
Speed of sound (sea level) | 761 | 327,750.85 | 13,656.29 | 37.389 | about 37 years | #8
Fastest humans ever (Apollo 10) | 24,791 | 10,060.84 | 419.20 | 1.148 | about 1.1 years | #9
Fastest spacecraft (Parker Solar Probe) | 430,000 | 580.04 | 24.17 | 0.066 | about 24 days | #10
Light | 670,616,629 | 0.37 | 0.02 | 0.000 | about 22 minutes (1,338.9 s) | #12