The scorching heat of atmospheric entry into Mars poses a formidable challenge to spacecraft. To survive this fiery ordeal, the NASA’s Perseverance Rover, Curiosity or Opportunity relied on its heat shield, constructed from specialized materials capable of enduring temperatures exceeding 1,300°C (2,372°F) – hot enough to melt most metals. This protective barrier, composed primarily of phenolic-resin based ablative material, played a pivotal role in ensuring the rover’s safe descent onto the Martian surface.
The development of efficient heat shield materials is an ongoing pursuit in aerospace engineering. Early works established fundamental principles for understanding thermal stresses and ablative material properties. This knowledge led to refinements in heat shield design for missions like Apollo, which employed innovative composites like silica-based aerogels. These porous aerogels, with a density of approximately 0.1 g/cm³, offer excellent insulation by trapping a layer of air that acts as a thermal barrier, reducing the heat transfer rate by up to 80% compared to solid materials. A critical aspect of this design is the relation between the aerogel’s porosity and its surface area, which directly influences its thermal conductivity.
A thermodynamic principle crucial to understanding ablative shield performance for Landing on Mars as you can see the heat shield component from Opportunity Mars Rover mission. Imagine a block of ice absorbing energy as it melts without a significant temperature change. Similarly, ablative materials utilize their latent heat capacity to absorb and dissipate the intense heat generated during atmospheric entry.
This process presents a paradox: while ablative materials are designed to be consumed during reentry, their mass loss must be meticulously controlled to ensure structural integrity throughout the descent. A 5% increase in ablation rate could compromise the shield’s ability to withstand aerodynamic pressures exceeding 100 kPa (kilopascals). This requires precise engineering calculations that balance material strength with ablation rate – an example of a trade-off between desired performance characteristics and material limitations. That’s why NASA made so hard and long job to run new Mars Rover!
Renders of Mars planet and voice – by iGadgetPro
Credit for real RAW-images of Mars: NASA/JPL-Caltech/ASU | nasa.gov | NASA/JPL-Caltech/MSSS
All NASA’s RAW-images were colorized, processed and edited by iGadgetPro
Timecodes
0:00 – Intro to Thermal Protection Systems on Mars Rovers
1:05 – Multi-layer TPS designs
2:18 – Ablative coatings and thermal insulation
3:37 – Seasonal Fluctuations on Red Planet
5:31 – Cloud dissipation mechanisms
6:07 – Martian Atmosphere Composition
7:43 – Atmospheric Circulation and Dust Cycle
8:29 – Global Dust and CO2 Redistribution on Mars
#nasamars #marsin4k #marsrover #SpacecraftEngineering #HeatShieldTechnology #AerospaceMaterials #ThermalProtection
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Hello
Amazing
So beautiful, I could see myself living there 😅
wow , tres apprécier la traduction en francais , merci wow, really appreciate the french translation, thank you 🙂🙃
Mars. The biggest off road fun park in the solar sys. Come and enjoy dropping into sinkholes😊
Sir, I wouldn't mind you commenting the pictures rather than talking assumed history of Mars.
Thanks. Nice pictures 🎉
Life on Mars will well and truly depend on its atmosphere if there’s breathable air like our planet. If the magnet field is very poor or there is none, it’s going to be a constant challenge to live there comfortably, can’t be in an astronaut suit 24/7 ? It’ll a matter of time before you rue the decision of going there .
There is no planet B, unfortunately 😢but it will be a huge step to send humans on Mars and make them back, it will give unprecedented space experiences feedback
Dlaczego nie ma tlumaczenia po polsku ?
Uzay aracı enkazını karıştıran iki insan dikkati çekiyor. Bunlar oraya nasıl geldiği anlaşılamıyor. Bu vido yorumlarında Jeolojik formasyon incelenirken Ay gibi sabit düşünceyle yorumladığı ortaya çıkıyor.
6:37. მარჯვნივ ქვემოთ სახეა დახატული კლდეზე🇬🇪
Another copycat channel, everybody wants to copy somebody else’s ideas just to make YouTube money come up with something original for Pete sake.
2% of Earth's atmospheric pressure at sea level. 1/10 of Earth's atmospheric pressure at 60,000 ft… which is about 0.8 lb per square inch
.08 lb per square inch…
Still think Mars has an atmosphere?
Eintritt in die Marsumlaufbahn mit 19 km/Sekunde.
Eine Gewehrkugel hat eine Geschwindigkeit von rund 1 km/Sekunde.
Der Mars hat keine Atmosphäre für Fallschirm Abbremsung mittels Luft
Was kommt da unten nach dem Aufprall an?
loool MARS ^^ ha ha ha hey john this plant is red .. we need a red color background …. NASA : oaky
but the red planet is red … why ? from the atmosphäre the planet is the same color the earth or the moon ^^ … not red not blue its dirty GREY loool
you see red color ^^ its FAKE … its alll fake loool ^^
Ja,….., man sieht es ganz deutlich. Das Fundament einer Marsmännchen Kommuune 🤣 Mineralien brechen "oft" Quadratisch❣️
¡¡Cuesta creer que ésa nave terrestre, se haya quemado o prendido fuego hasta las cenizas en su descenso, en una atmósfera "sin oxígeno", a no ser que exista oxígeno realmente, el mismo que oxida el hierro, dando color rojizo a Marte. ALGO NO CUADRA CON LA INFORMACIÓN CIENTÍFICA DE LOS NEGACIONISTAS DE "VIDA EN MARTE", PUNTO!!
PSALM 63 : 1