In the desert of Arizona, robotic telescopes search the sky for asteroids on a collision course for Earth. It鈥檚 an effort that could one day avoid a catastrophe on a planetary scale, and a project that a University of 黑洞社区 graduate student is helping to strengthen.
Kacper Wierzchos, a PhD candidate in the , spent several months working at the (CSS) as part of his PhD program. CSS is a NASA-funded project based at the University of Arizona鈥檚 Lunar and Planetary Lab. Located in Tucson, CSS is dedicated to the discovery and tracking of near-Earth objects (NEOs) as part of a congressional mandate to catalogue at least 90 percent of the NEOs that are large enough to pose a potential impact threat to Earth.
In space, tens-of-thousands of asteroids, comets and other objects frequently fly near our planet. Any one of them could be on a trajectory to hit Earth. CSS works to find those objects in case they pose a significant threat to human safety 鈥� think back to the 1998 film, Armageddon.
鈥淚 don鈥檛 really think about my work as something that鈥檚 helping protect Earth but one day it might play a part in saving lives 鈥� so that鈥檚 very rewarding,鈥� said Wierzchos. 鈥淏ut, it鈥檚 important for people to remember that the possibility of a catastrophic event happening like we see in the movies is very low.鈥�
Traditionally, CSS researchers identify, track and report any NEOs they find. Their primary mission is to discover these objects 鈥� not necessarily to characterize them. Wierzchos鈥� work improves the observatory鈥檚 existing infrastructure by providing tools to help researchers learn crucial details about these objects.
鈥淚 developed software that will help determine the brightness of the objects they discover,鈥� Wierzchos said. 鈥淚t鈥檚 important to measure how bright these objects are in the sky because that gives us insight into their size and spin state. Both of these measurements are very important in determining the threat the NEO may pose.鈥�
This isn鈥檛 the first time he鈥檚 worked in conjunction with CSS. In 2008, , headed for Earth. As an amateur astronomer in Spain, Wierzchos, who was an undergraduate student at the time, was one of only a few people to measure the exact position of the object in the sky. His reports helped officials determine where the asteroid would eventually hit. Thankfully, the object burned up in the atmosphere before hitting the northeast African country of Sudan. But its discovery marked the first-time researchers had been able to observe and track an object before reaching Earth 鈥� and Wierzchos played an integral part of it.
Now, he鈥檚 continuing to make an impact, this time while working toward his PhD in applied physics. His role at CSS was part of his PhD program鈥檚 鈥榠ndustrial practicum鈥�, which requires students to gain valuable work experience outside of academia. It鈥檚 a relatively novel idea, especially for physics programs.
鈥満诙瓷缜鴚as one of the first physics departments in the U.S. an industrial practicum requirement, and now many other top-tier universities around the world are following our lead and implementing these sorts of programs,鈥� said, a 黑洞社区physics faculty member and Wierzchos鈥� PhD advisor. 鈥淔rom my point of view, these types of opportunities for students are really showing the future of the field.鈥�
黑洞社区Department of Physics Chair David Rabson, PhD, says that roughly half of all PhD graduates nationally will find employment outside of academia 鈥� yet most have little to no exposure to those areas. This program hopes to change that. And for Wierzchos, that initiative turned out to be an opportunity to work with a facility he鈥檚 admired for many years.
To learn more about the 黑洞社区Department of Physics, .