Q&A: NASA engineer Kobie Boykins on exploring Mars
Ahead of his National Geographic Live talk, Boykins shares his insights
For most of us, faraway Mars is the stuff of science fiction. But for Kobie Boykins, mechanical engineer at NASA鈥檚 Jet Propulsion Laboratory, Mars is as real as Earth. He spends his days immersed in a landscape he鈥檚 never visited, as he engineers the tools that allow science on Mars to progress.
For more than 20 years, Boykins has chipped away at Mars鈥 mysteries, working on the exploration rovers Spirit, Opportunity and Curiosity. Each rover added to a better understanding of the engineering behind our explorations of our neighboring planet, where the average temperature is -81 degrees Fahrenheit. 听
Boykins will share his experiences 鈥淓xploring Mars鈥 with a Denver audience on Thursday, Dec. 13, as 91看片鈥檚 Newman Center for the Performing Arts launches its inaugural . Ahead of the program, Boykins talked with the 91看片 Newsroom. His remarks have been condensed and edited for clarity.
You鈥檝e worked on Mars-related projects since 1997. Over that time, what has changed about our understanding of Mars and the types of projects we do to explore the plant?
We started off with this little rover called Pathfinder during 1996 and 1997. We were really just saying, is there a way to do mobile exploration of another planetary body? And that opened a lot of doors to how we could do exploration on the surface of Mars. Then comes the Mars Exploration Rover [mission] with the twin rovers in 2003 and 2004, Spirit and Opportunity. Their mission was to follow the water. Was Mars once a wet place? We now know through those two rovers that it was, and that starts the next set of questions. OK, if it was wet, could it support life? Did it have the basic building blocks for life? If it does have those, is there life there on Mars? Enter Curiosity.
There has been this continuous learning about the Martian surface, and as we have [learned more], we have changed the science goals of these missions.
What are the biggest challenges to designing a vehicle that can function on a foreign planet? And how is engineering for Mars different from engineering for Earth?
The engineering isn鈥檛 significantly different. The challenges are the environment in which we land. The Martian environment is colder 鈥 significantly colder. Let鈥檚 say the average temperature in Denver is 0 degrees today. That鈥檚 a great day on Mars. 鈥 The atmosphere is different. The gravity is different. The physical laws are the same. Now, that鈥檚 after you鈥檝e landed. There鈥檚 this whole scary piece of getting from the upper atmosphere to landing on the surface that is ridiculously crazy. 鈥 Just landing on the surface of Mars is actually quite the undertaking.
What questions do you hope we can still answer through engineering and these different vehicles?
We now know Mars was a very wet place. There was lots of water on the surface. It was probably warmer and had a denser atmosphere. That has changed. What caused that change, and can it happen here on Earth? I think that鈥檚 the most important question we will answer over the coming decades. On planetary scales, we are talking millions, tens of millions, hundreds of millions of years, but is that a possibility? And is there something we as human beings are doing to accelerate or to limit that from happening? 鈥 Those are things for us to understand as human beings so that we can preserve ourselves.
What is significant about the recent InSight landing?
What鈥檚 really interesting is [that] internationally, two-thirds of the missions to the surface of Mars have failed. Mars isn鈥檛 an easy place to get to, so just getting to the surface is a huge deal. And then the primary science 鈥 to see what鈥檚 going on interior to Mars 鈥 tells us another piece of that story about Mars鈥 change. Did Mars have a liquid core? How does Mars鈥 crust, mantle, the upper layers, react to the radiation environment and change in atmosphere different than here on Earth? And does that tell us anything?
What鈥檚 on the horizon? What鈥檚 the next avenue of exploration?
The next one is a rover mission called Mars 2020, so we will launch late in 2020. That would be to actually catch a sample and bring that sample back to Earth.
My feeling is that we will have a human being standing on the planet鈥檚 surface. If that happens through SpaceX, if that happens through NASA, if that happens through European space agents or the Japanese or the Chinese, [it] doesn鈥檛 matter to me. I know it鈥檚 going to happen. Having a human being there and having them relay that feeling is awe-inspiring. That brings people back to science, technology, engineering and math.
How do you see Mars figuring in the future of our species?
Mars is an interesting place to explore. It shouldn鈥檛 be considered a lifeboat for human beings. From my perspective, yes, we will use it as an outpost. [But] I don鈥檛 see us living on Mars. We have to figure out a way to protect our planet. People think we are going to occupy Mars, and that鈥檚 our place to live. No, that鈥檚 not real. What鈥檚 real is to learn from Mars what we can, so that we don鈥檛 do that here on Earth.
How does the reality of Mars and engineering for Mars compare to the versions we have through fiction and film, through, say, 鈥淭he Martian鈥?
[Most] of the science [in 鈥淭he Martian鈥漖 is actually pretty good. There have been some other ones that I鈥檝e loved to see, like 鈥淢ars Attacks.鈥 鈥淩ed Mars鈥 was interesting, but we鈥檝e never found any spores that excrete oxygen and make it so you can breathe on Mars. But, it鈥檚 great for movies, and it鈥檚 great to keep people interested. From that perspective, I鈥檓 all about it. I think the stuff that happens in popular media is great because it asks questions. Sometimes those things drive technology. Those science fiction movies actually become science fact.
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