To infinity and beyond: The future of space at ASU
Editor's note: Read about the history of ASU's space school — how it grew from a traditional program into an astro powerhouse — here.
A mission to the moon is tough to top, but Arizona State University’s space program has plenty of stars in its eyes.
Peering into the alien ocean beneath one of Jupiter’s moons, mapping minerals on an asteroid for a rock-sampling mission, and building cameras for a future mission to Mars are all being worked on right now.
And there are bigger visions dancing in the minds of ASU’s space team.
“Our rocket ride to space for our (LunaH-Map) mission will be the first launch on the new Space Launch System,” Bell said, referring to the immense megarocket NASA is building. It will be a billion-dollar beefed-up Saturn Five capable of ferrying 77 tons of cargo and people to asteroids, the moon and eventually Mars.
In the next few years, Bell also expects to be planning and building cameras for the 2020 Mars Rover, a skill at which he is a top hand, having delivered more than 150,000 images from the Spirit and Curiosity Mars rovers.
The 2020 mission goal is to find interesting rock and soil samples that tell the history of Mars and cache them for pickup later. The 2020 mission won’t bring the caches back; a future mission will do that.
“I hope in a decade we’re talking about that future mission (to pick up the caches) actually happening,” Bell said. “In order to find out if there is or was life on Mars, it’s very difficult to make the measurements there in any convincing way. That’s why we have to bring the stuff back.”
Phil Christensen is the director of the Mars Space Flight Facility in the School of Earth and Space Exploration and a Regents' Professor of geological sciences. He is looking forward both to helping choose the spot to collect rocks and soil from an asteroid, and hunting for warm water on an icy Jovian moon.
NASA’s OSIRIS-REx mission lifts off next year. The spacecraft will travel for three years to reach an asteroid named Bennu that is the size of an Egyptian pyramid. It will touch the surface of the asteroid three times with an arm, grabbing (hopefully) up to 4 pounds of rock, then fly back to Earth and drop the sample capsule down to the Utah desert in 2023.
Christensen was the designer and instrument scientist on one of the mission’s five instruments: the OSIRIS-REx Thermal Emission Spectrometer, or OTES. It’s the first space instrument built entirely on the Arizona State University campus.
“We’re going to get up to this asteroid, and people are going to be surprised at what we find,” Christensen said.
It's not the only asteroid action at SESE. A team is looking to mitigate the risk of landing on asteroids — often appearing as piles of rubble loosely held together — by building its own "patch of asteroid" inside of a small, spinning satellite. The project is called the Asteroid Origins Satellite, or AOSAT I; Jekan Thanga, an assistant professor in SESE, and Erik Asphaug, a planetary scientist and professor at ASU, are the the engineering principal investigator and science principal investigator, respectively. A CubeSat launch is planned for January 2017.
As for Christensen, he’s envious of the scientists who sent the probe to Pluto. “That was stunningly fun,” he said. However, fun of his own is coming.
He is the lead for an instrument going along on NASA’s mission to one of Jupiter’s moons. The Europa mission — it doesn’t have an official name yet — will launch around 2022 and look for an ocean hidden beneath Europa's icy crust. The Europa Thermal Emission Imaging System (E-THEMIS) will act as a heat detector, scanning the surface of Europa at high resolution for warm spots where the ice is thin.
“Europa will be a lot of fun because we don’t know what we’re going to find,” Christensen said.
Bell has great hopes for the NewSpace Initiative, which matches ASU scientists and students with private space companies to solve problems. In a decade, he hopes such strong relationships with key players will exist that ASU will be able to devote significant resources on campus to interact with them, working on science as a sidelight in conjunction with figuring out how to deliver a payload, for instance.
“There’s ASU West, there’s ASU Poly,” Bell said. “Why not ASU Space?”
Linda Elkins-Tanton, director of the School of Earth and Space Exploration, sees the school leading academic-corporate relationships in the field.
“SESE is moving toward defining a new integrated team for designing space instruments to answer leading-edge science questions about the planets and space,” she said.
“We have a unique opportunity and drive to do so, since we have the scientists and engineers working and innovating together. We’ll be at the forefront of the new university-private partnerships for space. … We’ve got an awful lot ahead of us.”