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[ music ]

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My name is Florence Tan, I'm the SAM Electrical Lead Engineer, I work at Goddard Space Flight Center.

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SAM stands for Sample Analysis at Mars. It is an organic chemistry lab on the Curiosity rover,

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it is the most well-equipped chemistry lab that we've sent to Mars to date.

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Curiosity landed on Mars on August 5, 2012. It was born on Mars that day, and so we consider that day as its birthday.

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We're here at the test bed lab where SAM was built. It is an identical unit to the unit on Mars,

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and we use this unit to test our experiments before it is transmitted to Mars.

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SAM will be running some great science experiments on Mars, we will be analyzing some soil samples.

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To make the soil samples go down, we have to program it to vibrate at various frequencies.

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When we're introducing a sample into SAM, it will go through a resonance and it will sound like this.

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[ electronic tone ]

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To commemorate SAM's birthday and Curiosity's birthday on Mars, we decided to play a little song.

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If there's anyone listening on Mars on this special occasion, you will hear this.

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[ Happy Birthday to You ]

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It's really neat, and it's exciting! This is a first for NASA and for the world, and music brings us all together so this is fun!

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It's been a great year on Mars and I cannot wait to get to Mount Sharp next year.

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We've discovered so many new things, and there's still lots more discoveries to come.

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[ music ]