William (Bill) Paxton was a computer scientist at the University of California, Santa Barbara.[1] He was one of the founders of Adobe Systems and became one of the original designers and implementors of the PostScript page description language. He is also the creator of the most widely-used open-source software to simulate stars for computational stellar astrophysics research, MESA. In 2021, Paxton was awarded the Beatrice M. Tinsley Prize for developing the MESA software.[2]
Bill Paxton | |
|---|---|
| Born | William Hamilton Paxton |
| Died | July 23, 2025 |
| Known for | Adobe Systems, PostScript, Modules for Experiments in Stellar Astrophysics (MESA) |
| Awards | Beatrice M. Tinsley Prize |
| Scientific career | |
| Fields | Computer Science, Astrophysics |
| Thesis | A framework for speech understanding (1977) |
Paxton died in July 2025.
Stanford
editPaxton received his PhD from Stanford in 1977. He worked with Doug Engelbart at the Stanford Research Institute where the group would build the Online System (NLS) and was there during "The Mother of All Demos".
Xerox PARC
editAfter leaving Stanford, Paxton would join the Xerox Palo Alto Research Center (PARC) where they were working on emerging technologies, including Ethernet, networked personal computers, bitmap displays, graphical user-interfaces, and laser printers.[3]
Adobe
editPaxton joined Adobe in 1983. He built the Type 1 font algorithms for PDF. Paxton and his team received the ACM Software System Award in 1989[4] for the design of the PostScript language and implementation.
Kavli Institute for Theoretical Physics
editIn 1990 Paxton retired from Adobe Systems and became an unofficial scholar in residence at the Kavli Institute for Theoretical Physics (KITP) at the University of California, Santa Barbara, where he started working on the physics of stellar evolution. He is responsible for the EZ stellar evolution program and the creation of the open-source stellar evolution software Modules for Experiments in Stellar Astrophysics (MESA).[5][6]
References
edit- ^ "A Stellar Revolution: How Open-Source Tool MESA Changed the Way We Study Stars". www.simonsfoundation.org. Retrieved 2025-08-31.
- ^ Tasoff, Harrison (15 March 2021). "An Accidental Astrophysicist". The UCSB Current. UC Santa Barbara. Retrieved 31 May 2022.
- ^ "Bill Paxton | KITP".
- ^ ACM Software System Award
- ^ "Modules for Experiments in Stellar Astrophysics — MESA main documentation". mesa.sourceforge.net. Retrieved 2025-03-22.
- ^ Bill Paxton, MESA Discussion (video), October 11, 2011
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