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How to Touch Down on Mars | StarTalk


all right so so let’s back up for a

all right so so let’s back up for a minute because your your specialty was

minute because your your specialty was

minute because your your specialty was getting the thing there safely yes so

getting the thing there safely yes so

getting the thing there safely yes so that the scientists could do their job

that the scientists could do their job

that the scientists could do their job and so would I remember from Spirit and

and so would I remember from Spirit and

and so would I remember from Spirit and Opportunity they preview that the

Opportunity they preview that the

Opportunity they preview that the previous round of this they had like

previous round of this they had like

previous round of this they had like airbags now so the thing comes down and

airbags now so the thing comes down and

airbags now so the thing comes down and airbags deploy and it bounces until it

airbags deploy and it bounces until it

airbags deploy and it bounces until it stops now you have curiosity because

stops now you have curiosity because

stops now you have curiosity because those were the size of like microwave

those were the size of like microwave

those were the size of like microwave ovens let’s say yes okay

ovens let’s say yes okay

ovens let’s say yes okay so curiosity is the size of a car yeah

so curiosity is the size of a car yeah

so curiosity is the size of a car yeah and why not use airbags oh there are no

and why not use airbags oh there are no

and why not use airbags oh there are no fibers known to humankind from which we

fibers known to humankind from which we

fibers known to humankind from which we can make a fabric from which you can

can make a fabric from which you can

can make a fabric from which you can make a bag that could handle the loads

make a bag that could handle the loads

make a bag that could handle the loads of that car like Rover hitting the

of that car like Rover hitting the

of that car like Rover hitting the surface of Mars okay so now actually do

surface of Mars okay so now actually do

surface of Mars okay so now actually do you use what I’m told is called a sky

you use what I’m told is called a sky

you use what I’m told is called a sky crane yes this sounds complicated what

crane yes this sounds complicated what

crane yes this sounds complicated what what is that it’s like a jetpack it’s

what is that it’s like a jetpack it’s

what is that it’s like a jetpack it’s like a jetpack the rover was sort of

like a jetpack the rover was sort of

like a jetpack the rover was sort of wearing a jetpack and then about 25

wearing a jetpack and then about 25

wearing a jetpack and then about 25 meters from the Sun from the surface of

meters from the Sun from the surface of

meters from the Sun from the surface of Mars the jetpack lowers the rover below

Mars the jetpack lowers the rover below

Mars the jetpack lowers the rover below it and the to descend until the rover’s

it and the to descend until the rover’s

it and the to descend until the rover’s ok I think we have a long video of this

ok I think we have a long video of this

ok I think we have a long video of this can you be like Bill yes I drew you got

can you be like Bill yes I drew you got

can you be like Bill yes I drew you got the video let’s check it out okay take

the video let’s check it out okay take

the video let’s check it out okay take the talk us through it all right so we

the talk us through it all right so we

the talk us through it all right so we hit the atmosphere going quite quickly

hit the atmosphere going quite quickly

hit the atmosphere going quite quickly about 13,000 miles an hour that’s fast

about 13,000 miles an hour that’s fast

about 13,000 miles an hour that’s fast enough to burn up or melt the whole

enough to burn up or melt the whole

enough to burn up or melt the whole spacecraft that would be uncool so we

spacecraft that would be uncool so we

spacecraft that would be uncool so we wrap it in a special shell we actually

wrap it in a special shell we actually

wrap it in a special shell we actually steer our way through the atmosphere

steer our way through the atmosphere

steer our way through the atmosphere this is the first for this expedition

this is the first for this expedition

this is the first for this expedition and that’s where you see those rockets

and that’s where you see those rockets

and that’s where you see those rockets going off we’re actually maneuvering in

going off we’re actually maneuvering in

going off we’re actually maneuvering in the atmosphere and then when we’ve

the atmosphere and then when we’ve

the atmosphere and then when we’ve slowed down to about Oh a little less

slowed down to about Oh a little less

slowed down to about Oh a little less than a thousand miles now we open up a

than a thousand miles now we open up a

than a thousand miles now we open up a parachute in our case the world’s

parachute in our case the world’s

parachute in our case the world’s largest supersonic parachute we opened

largest supersonic parachute we opened

largest supersonic parachute we opened about Mach 2 we get rid of the heat

about Mach 2 we get rid of the heat

about Mach 2 we get rid of the heat shield that protected us from the from

shield that protected us from the from

shield that protected us from the from atmospheric entry and then we let go and

atmospheric entry and then we let go and

atmospheric entry and then we let go and we go on to rockets

now you can see a rover with its wheels

now you can see a rover with its wheels there’s six wheels they’re all sort of

there’s six wheels they’re all sort of

there’s six wheels they’re all sort of tucked up and it’s got this jet backpack

tucked up and it’s got this jet backpack

tucked up and it’s got this jet backpack on top of it it’s slowly descending into

on top of it it’s slowly descending into

on top of it it’s slowly descending into the Gale Crater

we’re looking at the ground with the

we’re looking at the ground with the radar and then here we do the SkyTrain

radar and then here we do the SkyTrain

radar and then here we do the SkyTrain maneuver we lower the rover below us

maneuver we lower the rover below us

maneuver we lower the rover below us drop the wheels down both vehicles

drop the wheels down both vehicles

drop the wheels down both vehicles continue to descend until Mars takes up

continue to descend until Mars takes up

continue to descend until Mars takes up the weight of the rover we sense that

the weight of the rover we sense that

the weight of the rover we sense that cut ourselves free and fly off to a safe

cut ourselves free and fly off to a safe

cut ourselves free and fly off to a safe distance I

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