When he was just 4 or 5 years old, Timothy “TJ” Tomaszewski lay in the grass one warm summer evening mesmerized by the glowing full moon and the stars moving across the sky.
“I clearly remember taking it all in, the majesty of the night sky and space and what might be up there … space has always symbolized the future to me,” he said.
The University of Delaware junior’s future includes making history as leader of UD’s Delaware Atmospheric Plasma Probe Experiment (DAPPEr) team, which will build the state’s first spacecraft to orbit the Earth.
Funded by NASA, the group of 18 undergraduates and two graduate students will create a three-unit CubeSat, a small satellite about the size of a loaf of bread that uses a standard size and form and standardized parts, to study how the sun affects the Earth’s upper atmosphere. It is one of 10 satellites being built at institutions in eight states to have the opportunity to be placed into orbit. Launch is scheduled for early to mid-2026.
“It’s always been part of my makeup and my goal to work with space science, preferably at NASA where I can work on rockets,” he said. “And now I have this incredible opportunity to lead a mission — to have a team and build something that we send into space.”
“TJ was a driving force behind this launch proposal,” said Bennett Maruca, associate professor of physics and astronomy and DAPPEr faculty adviser.
As NASA has very stringent application requirements, outlined in a 74-page guidebook, the group had to think through all of the intricate details on how they would build, manage and run the satellite.
The team endured two reviews, including a grueling four-hour meeting, of the project’s merit and feasibility, after which one of the members on the review panel called it “the best student mission he had ever reviewed,” according to Maruca, who also directs the Delaware Space Observation Center.
Hands-on, real-world experiences
Tomaszewski, an honors physics major with a concentration in astrophysics, chose UD for its “incredible physics program, strong space science program and the genuine nature of the campus,” he said.
“For an institution of modest size, UD punches above its weight and has a big presence,” Maruca said of the research opportunities for UD students. “We are involved in a lot of missions. We have great instrumentalists and theorists, and we all collaborate closely, allowing us to have leadership roles in half a dozen NASA missions right now.”
As a first-year student, Tomaszewski jumped into various outreach projects, demonstrating his skills and dedication to the program. He was part of this year’s RockSat-C mission team, which developed an experiment to measure the density and temperature of ionospheric electrons that was launched on a sounding rocket from NASA’s Wallops Flight Facility in Virginia on June 20. The group is still processing the data, but preliminary analysis shows the experiment successfully measured Earth’s lower outer atmosphere.