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here's a look at some of the top nasa

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with 2014 marking the 45th anniversary

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of neil armstrong's historic first step

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on the moon nasa outlined plans for

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america's next giant leap in space

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exploration to send astronauts to mars

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to prepare for that leap nasa stepped up

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development in 2014 of many

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game-changing technologies and

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capabilities

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the agency worked on solar electric

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propulsion technology which could enable

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cost-effective trips to deep space

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destinations

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mission in the 2020s to an asteroid

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placed into orbit around the moon by a

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robotic spacecraft as part of nasa's

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asteroid redirect mission nasa plans to

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announce more specific details in

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december about potential candidate

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asteroids and the design of the mission

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the successful first flight test in june

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of the saucer-shaped low-density

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supersonic decelerator demonstrated an

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inflatable system that could be used to

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land heavier and larger payloads than

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ever before on planets with atmospheres

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the international space station

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continued its role as a unique platform

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off the earth where astronauts are

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working for the earth with biomedical

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research and with payloads delivered by

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commercial partners spacex and orbital

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sciences corporation such as the first

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3d printer in space which could be used

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to manufacture parts in space

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and the addition of an earth science

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instrument to the space station's

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exterior to monitor ocean surface wind

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speed and direction for use in weather

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forecasting and for monitoring large

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scale changes in earth's climate

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in september nasa selected two u.s

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commercial providers boeing and spacex

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to develop the systems to transport

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astronauts from u.s soil to and from the

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space station with a goal of ending the

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nation's sole reliance on russia in

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2017.

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development of the rocket and spacecraft

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designed to carry astronauts on nasa's

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journey to mars progressed in 2014.

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the green light was given in august to

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start building the space launch system

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heavy lift rocket following successful

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completion of a key review

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new manufacturing facilities began

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testing operations and prototypes built

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with new more lightweight composite

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materials were evaluated

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in november the fully assembled orion

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spacecraft was moved to its launch pad

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at cape canaveral air force station in

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florida for its maiden flight test in

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december

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nasa's fleet of mars robotic explorers

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continued its work in 2014.

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the mars atmosphere and volatile

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evolution spacecraft arrived at the red

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planet in september as the newest member

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of the fleet maven is on a mission to

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investigate how the past loss of

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atmospheric gases impacted the martian

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climate through time

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samples from the first rock drilled at

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the base of mount sharp by the curiosity

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rover provided the first confirmation of

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a mineral mapped from orbit by the mars

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reconnaissance orbiter and the science

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instruments were selected for the mars

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2020 rover the next robotic explorer

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nasa will send to mars in 2020 it will

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conduct unprecedented science and

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exploration technology investigations

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including potential habitability of the

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current environment and directly

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searching for signs of past life

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nasa's role in studying and protecting

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our home planet has never been stronger

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nasa administrator charlie bolden called

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2014 the year of earth for nasa with the

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agency planning to launch five earth

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science missions within a year's time

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the first images from the global

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precipitation measurement mission

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launched in february of an

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extra-tropical cyclone illustrated the

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mission's ability to provide

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next-generation detailed observations of

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global precipitation

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in april nasa celebrated earth day with

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a hugely popular online global selfie

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postings from around the world to help

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promote environmental awareness

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and the test data from the orbiting

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carbon observatory 2 mission following

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its launch in july confirmed the health

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of the spacecraft's instruments oco-2

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will help track our impact on the amount

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of carbon dioxide in the atmosphere and

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the various human-made and natural

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sources of co2

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2014 included new discoveries new

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intriguing mysteries and new reasons to

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explore our solar system and beyond in

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november the european space agency's

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rosetta spacecraft which has three nasa

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instruments on board successfully landed

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its file robotic probe on the surface of

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a speeding comet the first ever soft

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landing of a spacecraft on a comet

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and nasa's kepler space telescope

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discovered a new earth-sized planet in

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april about 500 light years from us that

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also may have liquid water

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the agency's premier aeronautics

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research centers continue to work on

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solutions to help improve the safety

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efficiency and comfort of air travel

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while reminding people nasa is with you

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when you fly

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a demonstration in november featured a

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wing that can change shape and flight

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this could lead to technology for

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quieter and more fuel-efficient

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airliners in september nasa co-hosted an

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event that showcased two new

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technologies being evaluated that could

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improve takeoff time predictability of

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flights and help flight dispatchers

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choose more efficient routes around bad

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and in may nasa celebrated the renaming

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of its dryden flight research center to

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the neil a armstrong flight research

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center and designated hugh dryden's name

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that's a look back at some of the top

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nasa stories of 2014. keep up with us in