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Sound effect.

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Music.

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Music under narration.

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Getting tomorrow's

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technology ready

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for the future is the

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purpose of the Technology

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Demonstration Missions

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Program. Taking today's

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most promising exploration

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technology and raising it

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to the level of maturity

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that mission planners

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require, means that TDM puts

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the technology to the

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test. The projects include

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communication, materials,

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propulsion and robotics.

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Key to any exploration

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program is effective

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communication. Current

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technology is hitting a bandwidth

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and wavelength ceiling.

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Tomorrow's missions will

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need a new technology. NASA

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is leading the effort to

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make laser light reinforce

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the current radio or RF

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based communications. The

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Laser Communications Relay

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Demonstration or "Laser

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Comm" project will provide

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an orbital test-bed for a

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wide variety of scenarios

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to simulate future

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missions. In the near future

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laser communications could

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increase the amount of

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information to tens of

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gigabits per second. This

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would be an improvement of

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data rates of between 10-100

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times. The project will

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use laser light transmitted

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to a satellite payload and

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back to an earth station

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to simulate and test a

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large number of possible

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mission scenarios. Another

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foundational technology being

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improved by the TDM Program

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involves a basic component

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of all exploration missions…

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time. The Deep Space

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Atomic Clock project promises

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to reduce cost, improve

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space navigation, data

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quality and the next GPS

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system. To test this

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concept, the project will fly

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the deep space atomic clock

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along with a GPS receiver

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on a commercial communication

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satellite. Ground

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based systems require

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two-way communication, with an

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onboard atomic clock

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DSAC allows for 1 way

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navigation-using NASA's Deep

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Space Network more efficiently!

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Eventually this will

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enable deep space autonomous

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navigation. Communications

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and science payloads

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need advanced warning of

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Solar Flares. One way to

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do that includes

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station-keeping capabilities like

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the current NOAA solar

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activity warning instrument.

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The TDM Solar Sail project

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takes a previously tested

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propulsion technology and

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infuses it into an even

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better warning system 2

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times closer to the sun. The

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Solar Sail project

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pushes the technology to a

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practical application while

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simultaneously maturing the

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system so that future

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mission planners can chose it

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for a whole range of missions.

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All of NASA's Technology

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Demonstration Missions are

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infusing mature technology

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from the realm of tested

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to ready and proven. The Green

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Propellant Infusion Mission

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will demonstrate a

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high performance  green

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fuel with the goal of

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marketplace infusion.

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capacity and enhanced spacecraft

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manuneuverability. Maturing materials

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and technology continues

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to be an objective of

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the TDM Program. Sometimes

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that means putting instruments

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on the spacecraft of

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other NASA Missions to further

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our collective knowledge.

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One project that does that is

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MEDLI. MEDLI stands for Mars

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Science Laboratory Entry Descent

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and Landing Instrumentation.

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MEDLI was an instrumentation

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suite embedded in and behind the

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heat shield of the Mars Science

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Laboratory. It gathered data

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during the recent successful landing

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of the Mars Curiosity Rover

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shield, and aerodynamics during

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entry and descent.  The MEDLI

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data will improve modeling and

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predictive capabilities for future

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missions, ensuring safer and

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less expensive missions to a

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larger variety of destinations.

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Along with the MEDLI data, NASA

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will see the fruits of research

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into entry in low density

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atmospheres like Mar's with the

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Low Density Supersonic Decelerator

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or LDSD project. On Mars for

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example, increasingly massive

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payloads and eventually human

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missions will require new ways to

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slow down to subsonic speeds, high

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in the thin Martian Atmosphere,

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allowing more landing site

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options. These heavier spacecraft

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will need large drag generating

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devices and the LDSD project

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will test 3 of them. Two of the

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test articles will be inflatable

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inner tube type devices that

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surround the entry capsule.

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These 6 and 9 meter devices will

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be flown at supersonic speeds

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high in the earth's atmosphere.

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The third device will be a

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large 30 meter parachute tested

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several times to collect data

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for future exploration missions.

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All the previous exploration

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enabling technologies will be

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dependent on propulsion to get

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to their destination. Long

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duration missions require special

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considerations for the cryogenic

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propellant likely to be used

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for human exploration missions.

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On short missions, the natural

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boiling off of cryogenic fluids

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is not as serious a concern,

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but on long missions it

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becomes critically important.

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Propellants are heavy and expensive

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to lift to orbit and therefore

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too precious to lose. Anything

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we can learn to minimize this

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pays back huge dividends! There

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are a variety of approaches to

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meet this challenge including

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passive systems like insulation

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and active ones like refrigeration.

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Another important part

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of this research is lossless

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transfer of cryogenic fluids and

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accurate measurement.  Some of

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those future missions will include

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humans, others robots and some will

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be a symbiotic combination of both.

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The Telerobotic Project is working

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onboard the International Space Station