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CURIOSITY: Big Mars Rover for Big Mars Science!

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NASA/JPL-Caltech For the first time, a Mars rover will land with wheels touching down first, instead of airbags. Artist s Concept. NASA/JPL ... – PowerPoint PPT presentation

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Title: CURIOSITY: Big Mars Rover for Big Mars Science!


1
CURIOSITY Big Mars Rover for Big Mars Science!
Artists Concept. NASA/JPL-Caltech
2
NASAs Mars Rover Curiosity launched from Cape
Canaveral in Florida.
NASA/JPL-Caltech
3
Curiosity launched on an Atlas V-541, the
largest rocket for launching to a planet.
It is propelled toward Mars by a Centaur upper
stage.
Artists Concept. NASA/JPL-Caltech
4
Curiosity is headed to Gale Crater.
You can see where other Mars landers and rovers
have successfully landed on Mars too.
NASA/JPL-Caltech
5
Gale Crater is about 96 miles wide. It has
many rock layers for Curiosity to explore, from
canyons to channels, all in one place!
NASA/JPL-Caltech
6
Curiosity is targeted to land within the yellow
ellipse, on flat terrain near Gales central
mound.
Central Mound
NASAJPL-Caltech/ASU/UA
7
Curiosity is twice the size of Mars rovers Spirit
and Opportunity and five times as heavy.
NASA/JPL-Caltech
8
To fit all these tools on the rover, the team
had to supersize everything, from the capsule
that holds the rover, to the parachute that
slows it down before landing.
NASA/JPL-Caltech
9
To get to Mars, Curiosity will travel safely
tucked inside a protective shell.
NASAJPL-Caltech
10
The trip will take over eight months.The rover
will travel about 354 million miles (570 million
kilometers).
Artists Concept. NASA/JPL-Caltech
11
Sky Crane Detail
Altitude 20 m Velocity 0.75 m/s Time Entry
413 s
CruiseStageSeparation
Time Entry 10 min
CBMDSeparation
Time Entry 8 min
Altitude 125 km Velocity 5,900 m/s Time
Entry 0 s
Entry Interface
Altitude 0 m Velocity 0.75 m/s Time Entry
427 s
Peak Heating
Peak Deceleration
Parachute Deploy
Radar Data Collection
Hypersonic Aero-maneuvering
Altitude 11 km Velocity 405 m/s Time Entry
265 s
Heatshield Separation
Altitude 1.6 km Velocity 80 m/s Time Entry
375 s
Backshell Separation
Altitude 8 km Velocity 125 m/s Time Entry
289 s
Powered Descent
This chart shows the entry, descent and landing
sequence
Sky Crane
Flyaway
NASAJPL-Caltech
12
The spacecraft enters the Martian atmosphere 78
miles above the planet. The rover will take
approximately seven minutes to reach the ground.

Artists Concept. NASA/JPL-Caltech
13
This spacecraft can steer its way through the
turbulent atmosphere so it can land more
accurately.
Artists Concept. NASA/JPL-Caltech
14
The friction of the atmosphere slows the
spacecraft from 13,000 mph to about 900 mph.
The heat shield may reach 3,800 degrees
Fahrenheit!
Artists Concept. NASA/JPL-Caltech
15
A supersonic parachute slows the spacecraft
from about 900 mph to 180 mph, the speed of
a Formula One race car.
Artists Concept. NASA/JPL-Caltech
16
While slowing down using the parachute, the heat
shield is popped off, exposing the rover to the
Martian atmosphere.
The rovers descent camera begins taking a movie
of the remaining five-mile flight to the ground.
Artists Concept. NASA/JPL-Caltech
17
The engines on the descent stage roar to life
and fly the rover down the last mile to the
surface.
As it descends, the rover uses radar to measure
its speed and altitude, which it uses to land
safely.
Artists Concept. NASA/JPL-Caltech
18
The descent stage lowers the rover on three
nylon ropes called bridle.
Coiled electronics and communications cables
also unspool from the descent stage. This
configuration is known as the Sky Crane.
Artists Concept. NASA/JPL-Caltech
19
By the time Curiosity touches down, the rover is
going about two miles per hour.
Less than seven minutes before, it was traveling
at 13,000 miles per hour!
Artists Concept. NASA/JPL-Caltech
20
When the sky crane senses that Curiosity has
touched down, the cables are cut.
The sky crane flies a safe distance away from
the rover before crash-landing.
Artists Concept. NASA/JPL-Caltech
21
For the first time, a Mars rover will land with
wheels touching down first, instead of airbags.

Artists Concept. NASA/JPL-Caltech
22
Curiosity will start exploring Mars after raising
its head and doing a self-check to make sure
all systems are go.
Driving could take several days to a few weeks
after landing.
Artists Concept. NASA/JPL-Caltech
23
Curiosity is expected to work for one Martian
year, or about two Earth years.
Dont miss the adventure on Mars, beginning
August 2012!
Artists Concept. NASAJ/PL-Caltech
24
Follow Curiosity!
  • Mission Website
  • mars.jpl.nasa.gov/msl
  • Twitter _at_MarsCuriosity
  • Be A Martian!
  • beamartian.jpl.nasa.gov
  • www.nasa.gov/msl
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