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t-minus 10 9 8 7 and we have been in

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dart 5 4 3

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one of NASA's largest ongoing projects

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is the Space Launch System or SLS which

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will one day allow us to explore deep

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space destinations like asteroids and

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eventually Mars in order to make the SLS

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a success NASA centers must collaborate

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with one another to accomplish mission

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goals and reach major milestones two of

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the center's collaborating on the SLS

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project are Marshall Space Flight Center

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in Huntsville Alabama and Stennis Space

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Center in Hancock County Mississippi

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while Marshall is a home to the SLS

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program in the liquid engines office

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Stennis Space Center has long been known

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as the agency's largest rocket testing

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facility and they have been extremely

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busy with the testing of the upgraded

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rs.25 engines in fact all rs.25 engine

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testing happens exclusively at Stennis

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Space Center

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if these engines look familiar to you it

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may be due to the fact that they were

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used as a space shuttle main engine for

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the last 30 years compared to the three

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rs.25 engines that the Space Shuttle had

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the SLS will utilize four of them to

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produce 2 million pounds of thrust the

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thorough testing of the rs.25 plays an

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essential role in upholding NASA's high

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standards of efficient and reliable

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engines did you know in 1985 several of

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the rocket complex test stands currently

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being used to test these engines at

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Stennis Space Center were deemed

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national historic landmarks due to their

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significance in the development of the

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Saturn 5 rocket used for the Apollo

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missions for more detailed information

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about NASA's rs.25 engines you can find

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the conference paper titled next

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generation rs.25 engines for the NASA

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space launch system on the nasa

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technical report server or NTR s the NTR

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s is one of the world's largest

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repositories of aerospace STI and

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features records ranging from the NACA

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era to today's cutting-edge research

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that's all for today thanks for watching

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[Music]