Margaret Ann ("Peggy") Shea is a space scientist known for research on the connections between cosmic radiation and Earth's magnetic field.
In 2018, the College of Engineering and Physical Sciences at the University of New Hampshire honored her with the Distinguished Alumni Award and an honorary degree.
[10] Shea is known for her research connecting cosmic rays, solar particles, and the Earth's magnetic field.
[11][12] Her research on vertical cutoff rigidities[13] led to the development of a computer program, the Geomagnetic Cutoff Rigidity Computer Program,[14][15] which set the standard for the amount of radiation that pilots and astronauts can encounter.
[16] Shea's research includes an investigation into the Solar storm of August 1972 which set off a Coronal mass ejection, magnetized clouds of gas, which caused mines to detonate in Vietnam.