| Susan Elizabeth Kayser | |
| Nationality: | American |
| Fields: | Astronomy Astrophysics |
| Education: | Radcliffe College California Institute of Technology |
| Thesis Title: | Photometry of the nearby irregular galaxy, NGC 6822[1] |
| Known For: | Development of the Gemini Observatory |
| Doctoral Advisors: | Halton Arp, Jesse L. Greenstein |
| Spouse: | Boris Kayser |
Susan Kayser is an American astronomer. She was the first woman to receive a PhD in astrophysics from the California Institute of Technology,[2] which attracted some media attention at the time.[3] [4] [5] Her thesis research included the most thorough study of the irregular galaxy NGC 6822 until 2002.[6] She spent her career with NASA working on the Helios and International Cometary Explorer (later called the International Sun-Earth Explorer-3) spacecraft radio astronomy experiments and with the National Science Foundation working on the Gemini Observatory.[7]