SimonTV Posted February 20, 2021 Share Posted February 20, 2021 (edited) https://en.wikipedia.org/wiki/Perseverance_(rover) https://www.express.co.uk/news/science/1398653/nasa-mars-landing-how-will-perseverance-land-red-planet-space-evg Probe took 7 months to travel 130-140 million miles. Media claims the probe travelled at 12500 miles per hour. yet a calculation shows that it would take 25000 miles per hour to travel 130 million miles in 7 months. 130 million miles 5100 hours = 25000 miles per hour roughly speaking. try any online speed calculator and see if i am wrong please. I even read one article that said the journey was even longer because they don't go in a perfect line. With the guardian saying it was 300 million miles. 300 million miles 5100 hours = 58800 miles per hour hahah 16 miles per second. Edited February 20, 2021 by SimonTV Quote Link to comment Share on other sites More sharing options...
Doctor What Posted February 20, 2021 Share Posted February 20, 2021 32 minutes ago, SimonTV said: Media claims the probe travelled at 12500 miles per hour. This is the speed for time it has reached close to the planet. Slow down phase. It is not under any propulsion during journey. It fires initial burn to escape Earth and perform transfer orbit and then from this point correction burns: https://mars.nasa.gov/mars2020/timeline/cruise/ For explanation about distance travelled 300 million miles - this is relative distance caused by planet orbits. Actual distance is as said 130 million miles. Quote Link to comment Share on other sites More sharing options...
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