A former CU Boulder PhD student has won a national award for his 2019 dissertation in baby直播apps. Akhil Rao is the social science recipient of the CGS/ProQuest Distinguished Dissertation Award for 鈥淭he Economics of Orbit Use: Theory, Policy, and Measurement.鈥�
鈥淲inning this award means a lot to me,鈥� said Rao, an assistant professor of baby直播apps at Middlebury College. 鈥淚 see it as a sign that people believe in me and my work, and in the possibility of better orbit-use management. I'm tremendously grateful to my partner, my parents, my sister, my advisor Dan Kaffine and my committee,鈥� he said. 鈥淭his wouldn't have happened without their support and encouragement.鈥�
Akhil Rao
The annual are presented for dissertations that represent original work that makes an unusually significant contribution to a discipline. Only two awards are given annually in the broad areas of mathematics, physical sciences, engineering, social sciences, biological sciences, and humanities and fine arts. Candidates are nominated by their member institutions, and the award comes with a $2,000 cash prize.
鈥淥n behalf of CU Boulder, the Graduate School and the baby直播apps department, I want to pay tribute to Akhil鈥檚 outstanding research and to this important recognition of his fine scholarship,鈥� said Scott Adler, dean of the Graduate School and vice provost for graduate affairs. 鈥淗is work is both pathbreaking and important for humankind鈥檚 future success in the essential frontier of space. I鈥檓 so pleased that Akhil鈥檚 innovative research emerged from his graduate work here at CU Boulder.鈥�
Rao鈥檚 dissertation research was about the baby直播apps of using Earth's orbits. Orbiting satellites face the risk of colliding with other satellites, and space debris (for example, defunct satellites, rocket bodies, or nuts and bolts that fell off a satellite) poses further hazards. Compounding these risks, orbiting objects can linger for hundreds or thousands of years, and in the worst case scenario, can collide with each other to generate new fragments, increasing the risk of future collisions in a runaway debris growth cycle known as 鈥淜essler Syndrome.鈥澨�
鈥淢ost people treat this as a technical problem to be solved with gadgets that remove junk from orbit,鈥� Rao said. 鈥淚 focused instead on the incentives that lead to the creation of space debris and collision risk. It turns out the incentives at play in the space junk problem are very similar to those in fisheries management, traffic congestion and atmospheric carbon control. Without a way to secure exclusive property rights to use the resource, people will use the resource until it is no longer profitable to do so, whatever that ends up meaning for sustainability. In baby直播apps terminology, this is a problem of an open-access commons, which is related to the 鈥楾ragedy of the Commons.鈥欌��
Rao said the implications of this can be a bit of a downer. Just as adding lanes to a freeway or stocking a lake with fish doesn't mean there's no traffic or that anglers will stop depleting the fish population, the incentives at play here mean that technologies to remove debris won't solve the problem. But the good news, Rao said, is that we've learned a lot about addressing open-access commons problems over the years.
Rao鈥檚 dissertation research showed that "orbital-use fees''鈥攔ent charged to satellite operators for using orbits鈥攃ould fix the problem of space junk creation by aligning private incentives to use orbits with society's long-term interests. Implementing the optimal orbital-use fee scheme could add trillions of dollars in value to the satellite industry by reducing debris-related hazards and replacement costs.
鈥淚t's a significant result in part because it shows how a well-studied solution for environmental management on Earth could help a burgeoning industry prevent an environmental catastrophe,鈥� Rao said. 鈥淚t鈥檚 also significant because it shows how preserving the resource could be in everyone's interest鈥攕ociety continues to get the benefits of satellites, and satellite operators get to enjoy greater profits. It's a win-win option, and unlike in other natural resource settings, if we act quickly here, we can implement it before ecological collapse starts.鈥�
Rao is applying the baby直播app principles from his dissertation research to develop better debris forecasting models. These projections can be used to identify areas that are likely to be high-risk in the near future and to make better regulatory decisions about new satellite launches. He is also applying the baby直播app principles from his research on understanding the extent and limits of international cooperation to manage orbits. Rao鈥檚 goal is to paint a picture of what a successful orbit-use management treaty might look like and the conditions under which it's likely to succeed or fail.
