Allison Ayad in her workspace at JPL

The Starshade project aims to do pretty much what the name suggests: suppress the light from distant stars so scientists can learn more about the planets that surround them – including whether they’re likely to support life. In practice, it requires building a giant, precisely shaped structure that can unfurl from a relatively tiny package and fly in perfect sequence with a space telescope. Interns have been key to making the idea a reality. The team has brought in more than 40 interns in the past seven years. We already caught up with three-time Starshade intern Christopher Esquer-Rosas, who is using his origami skills to help a full-scale model of the giant sunflower-shaped structure unfurl. Meanwhile, intern Allison Ayad, a mechanical engineering student at Pasadena City College, is creating a working miniature model to narrow in on the design. Fellow intern Evan Kramer met up with Ayad to find out how she’s contributing to the project and how she’s bringing what she’s learning back to school.

JPL Interns

Meet JPL Interns

Read stories from interns pushing the boundaries of space exploration and science at the leading center for robotic exploration of the solar system.

What are you working on at JPL?

I'm working on a project called Starshade, which is a 26-meter diameter, flower-shaped structure we want to send to space to help us get images of exoplanets, [planets outside our solar system]. With these images, we could learn more about exoplanets and see if they could potentially harbor life.

So Starshade is a sort of spacecraft?

Yeah, it is! Starshade would fly out and position itself between a space telescope and a star. Its shape would suppress the light from the star so the spacecraft could get direct images of the exoplanets around it. It's similar to when you try to take a picture outside, and the Sun washes out the image. If you block the light from the Sun, then you can see everything in more detail. That's pretty much what Starshade would do.

What’s a typical day like for you?

Every day is very different. What I am working on is making a mini, fully deployable Starshade for interactive purposes, so we can show all the different stages of deployment. It will sort of be the first of its kind.

When I come in, I usually do work on my computer with [software] like Solidworks. Then, I do a lot of rapid prototyping with the use of 3D printers and laser cutters to test out all the little, moving components that are going into the real model.

I spend some of my time helping with the big structure that's out here. [She points to the warehouse-like space where the team is assembling a full-scale version of Starshade, which is about the size of a baseball diamond fully unfurled.] But most of the time, I'm working on the mini one. At least once a day, I’ll talk with my mentor, David Webb, about the ideas that I have on how to make things work. We'll bounce ideas off each other, then I'll have stuff to think about for the next day.

Allison Ayad stands under the support structure for a full-scale model of Starshade

Ayad stands under the support structure for the full-scale model of Starshade. Image credit: NASA/JPL-Caltech/Evan Kramer | + Expand image

What's been the most JPL- or NASA-unique experience you've had so far?

I’ve been here for a year and a half now, and I think the Starshade lab is the coolest at JPL, but I'm a little bit biased. It's really cool because we have a bunch of prototypes everywhere, so you get to see what Starshade would look like in real life. And there are a bunch of interactive models that you can play with to see all the different deployment stages.

How do you think you're contributing to NASA/JPL missions and science?

The full Starshade isn’t really finished being designed yet, so a lot of the problems that [the team that is building the full-scale model] is facing, I'm also facing with the mini one. The ideas that I'm thinking through could potentially help with the real flight-model design.

How has the work you’ve done here influenced you back at school?

When I first started interning here, I actually didn't have a lot of the core class requirements [for my major] done. So a lot of the terms and concepts that people were using at JPL were still new to me. Then when I took the classes, all [the lessons from my internship] came back, and I was like, whoa, I already kind of learned this stuff and got a hands-on approach to it. I'm a very hands-on learner, so having that previous experience and then learning more of the math behind it helped with that learning process.

If you could travel to any place in space, where would you go? And what would you do there?

I’d like to go to Mars just because we're so close to doing it. It'd be cool to see what's there. I personally think there's a really good chance there was once life on Mars. If I could go and see for myself, that would be pretty awesome.


Explore JPL’s summer and year-round internship programs and apply at: https://www.jpl.nasa.gov/edu/intern

The laboratory’s STEM internship and fellowship programs are managed by the JPL Education Office. Extending the NASA Office of Education’s reach, JPL Education seeks to create the next generation of scientists, engineers, technologists and space explorers by supporting educators and bringing the excitement of NASA missions and science to learners of all ages.

TAGS: Internships, Interns, Students, College, STEM, Opportunities, Starshade, Exoplanets, Engineering

  • Evan Kramer
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JPL Christopher Esquer-Rosas holds an origami version of the Starshade engineering model behind him.

Origami is going to space and Chris Esquer-Rosas is helping it get there. A computer engineering student at San Bernardino Valley College in Southern California, Esquer-Rosas used to do origami only as a hobby, but now he’s using it to build a giant sunflower-shaped structure that his team hopes will provide a new window into worlds beyond our solar system. Esquer-Rosas explains how he’s putting his origami skills to use and what got him folding in the first place.

What are you working on at JPL?

I’m working on Starshade, specifically the Petal Launch and Unfurler System.

What is starshade and what is it supposed to do?

Starshade is a proposal to fly a giant, sunflower-shaped shade in front of a space telescope, so we can directly image exoplanets, which are planets outside of our solar system. One of the big issues that we have is that we know exoplanets are there, but we can’t get the data we want about them because the stars that the planets are surrounding are too bright and they're basically blocking our view. So what Starshade is going to do is suppress or diffract sunlight while a telescope with all the science instruments directly images those exoplanets. It will probably be a little image, like one-by-one pixel, but with that one image, we can actually get a ton of data about these exoplanets – so carbon dioxide emissions, possibly water vapor, methane, gases and things like that.

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There's a lot of origami involved in building Starshade. How does it come into play?

When it unfurls in space, Starshade is supposed to be 36 meters (about 118 feet) in diameter, which is about the size of a baseball diamond, and it's supposed to be only 2.5 meters (about 8 feet) in diameter when it’s stowed for launch. We’re using origami concepts to make that possible. Origami involves a lot of math. A lot of people don't realize that. But what actually goes into it is lots of geometric shapes and angles that you have to account for. One of the first things that I started doing on Starshade was helping with the stow pattern. So starting out with one sheet, how do you fold it so you can stow it at a much smaller size? Do you want it to be taller or shorter? How many folds do you want? And then, how small do you want it to be? We developed a bunch of algorithms, so now all you have to do is input the specs, push enter, and a new pattern is created instead of having to refold things over and over and over again.

What are some of the challenges in getting that whole operation to work?

There are lots of challenges. The first challenge is making sure none of the petals gets nicked. [Starshade is shaped like a sunflower.] The petal edges are razor sharp and they are what allow the light to be diffracted so we can image the exoplanet. The curvature of the petals has to be within half-a-human-hair-width accuracy, so we have to make sure nothing happens to them. If any of them gets nicked, then now we have this giant bright spot in our images. We also have to make sure all the petals end up in the correct position once Starshade unfurls. And we have to make sure no light comes through any part of the Starshade itself.

Which of those challenges are you working on solving?

What I’m working on is making sure none of the petals touches each other. That's one of the big challenges. We have to find a way to slowly unwrap the petals so nothing interferes or touches any of the petal edges or the petal itself.

JPL Interns

Meet JPL Interns

Read stories from interns pushing the boundaries of space exploration and science at the leading center for robotic exploration of the solar system.

Tell me about your background in origami and how it brought you to JPL.

I've been doing origami since the fourth grade, when my teacher read us “Sadako and the Thousand Paper Cranes.” At the end of the book, it teaches you how to fold your own paper crane. After I folded it, I just had this instinct to want to unfold it to see what it looked like. It has this unique pattern. So I started measuring it, and I figured out that different angles give you different lengths for the wings and the legs. So I was like, ok, what if you rotate the entire crease pattern 45 degrees? Now you get these more beautiful wings and you get a different shape. Then, I started folding other people's designs and learning how to design my own origami. I loved origami so much that I started learning the math behind it. A friend of mine, Robert Salazar, had started at JPL, and he was also an origami guy. We've been friends since seventh grade. He started on Starshade and then, eventually, he was leaving and he told them about me. They interviewed me a few times and then they were like, OK, come in and help us out.

Before that, did you have any idea there was an application for origami in space exploration?

I knew there were applications for other things like airbags and deployable mirrors, but I didn't know that there were space applications. That's what blew my mind. I was like, origami is going to space now? This is amazing.

Are you studying something origami-related in school?

I'm actually studying computer engineering, so it's completely different.

Has interning with Starshade made you want to change your career path?

It's like this close, because I've wanted to be a computer engineer since fourth grade as well. But since working here, a lot of the mechanical stuff has been a big learning experience. I didn't know mechanical engineering existed, but now that I do, it's amazing.

How do you feel you're contributing to NASA/JPL missions and science?

I feel like I'm contributing because, right now, interns are on the front lines of testing out the hardware and making sure everything works. We're dealing with issues, trying to fix them, and coming up with ideas. I feel like we're actually contributing a lot to how this thing could eventually deploy in space.


Explore JPL’s summer and year-round internship programs and apply at: https://www.jpl.nasa.gov/edu/intern

The laboratory’s STEM internship and fellowship programs are managed by the JPL Education Office. Extending the NASA Office of Education’s reach, JPL Education seeks to create the next generation of scientists, engineers, technologists and space explorers by supporting educators and bringing the excitement of NASA missions and science to learners of all ages.

TAGS: Interns, Internships, College, Higher Education, Student Programs, Starshade, Origami, Exoplanets, Technology

  • Kim Orr
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