United States. National Aeronautics and Space Administration

In this interview, astronomer Peter Jakobsen discusses his involvement with the Hubble and James Webb Space Telescopes during his life-long career at the European Space Agency (ESA). He recounts his early childhood growing up in Cincinnati and later returning to his hometown in Denmark, where he attended the University of Copenhagen. He reflects on his time at the Laboratoire d’Astronomie Spatiale in Marseille during his Master’s degree and his time at Berkeley working in the Space Astrophysics Group led by Stu Bowyer. Jakobsen discusses his job as Project Scientist for the European involvement in the Hubble Space Telescope, the development of ESA’s Faint Object Camera, and the discovery of the spherical aberration. He details his role in the development of COSTAR and Hubble’s repair missions. Jakobsen recalls being skeptical of the initial talks for the Next Generation Space Telescope, but later taking on a key role for the European side of the project. He also recalls the competition between the contractors working on the initial design phase for NIRSpec. Jakobsen gives an account of his last years at ESA and the conditions that led to his retirement from the agency in 2011. He gives his perspective on Webb’s launch and reflects on the budget and schedule delay concerns. He discusses his post-retirement technical work and the guaranteed observing time program for JWST. Towards the end of the interview, Jakobsen describes his current focus with NIRSpec and his reflections on the future of astronomy.

In this interview, Kai Hostetter-Habib, the 2024 AIP Center for History of Physics intern, interviews Dr. K. Renee Horton, an Airworthiness Deputy for NASA’s Electrified Powertrain Demonstrator Project. Dr. Horton reflects on her early childhood growing up in Louisiana, her hearing loss diagnosis, and how that impacted the trajectory of her life. She discusses her experience as a non-traditional student, going back to college after a ten-year break with three children, and the racism she dealt with in the South. She recounts how she got involved with the National Society of Black Physicists (NSBP) and her two-year tenure as NSBP president from 2016 to 2018. Dr. Horton also goes through her career progression at NASA, from material test engineer to the Space Launch Systems quality engineer to Airworthiness Deputy. She concludes by talking about her disability rights advocacy, her mentoring, the children’s books she authored, and the importance of her family.

Interview with George Withbroe, retired science program director at NASA. Withbroe provides an overview of his childhood in Wisconsin where he enjoyed hunting and archery with his family. He discusses his undergraduate studies at MIT, which he remembers as being a highly competitive environment. Withbroe explains the impact of Sputnik on his interest in space science, leading him to pursue graduate studies in astronomy at the University of Michigan. He recalls discovering the joy of teaching during this time, as well as a memorable summer job at the NASA Lewis Research Center (now Glenn Research Center). Withbroe then describes his postdoctoral position at Harvard, working on the satellite program and the Orbiting Solar Observatories. He recounts his transition to the Smithsonian Astrophysical Observatory and his involvement in Skylab. Withbroe discusses going back to Harvard where he served as director of the Solar and Stellar Physics Division, before moving to NASA as the Director of the Space Physics Division. Withbroe covers topics such as securing funding for research, collaborations with the international scientific community, and the importance of diversity in science. He discusses his retirement from NASA and continuing his research at George Mason University. The interview concludes with Withbroe’s reflections on the many advisory committees he has served on, as well as his thoughts on the relationship between religion and science. 

Dr. George Doschek, retired scientist at the Naval Research Laboratory (NRL), is interviewed at the American Center for Physics in College Park, Maryland, by Ryan Hearty, oral history fellow at the American Institute of Physics. Doschek describes his early life in Pittsburgh and later career, spanning five decades, at the NRL in Washington, DC. Subjects include: Doschek’s childhood in Pittsburgh, growing up in a household supportive of music and science; undergraduate and doctoral studies at the University of Pittsburgh; coming to NRL and early activities in solar physics; work on spectroscopy at NRL, including on the missions OSO-1 to OSO-8, the 11 SOLRAD satellites, Skylab and the Apollo Telescope Mount (ATM), the P78-1 spacecraft, Yohkoh, and Hinode; and managing the Solar-Terrestrial Relationships Branch.

Interview with James Kasting, geoscientist and Distinguished Professor of Geosciences at Penn State University. Kasting describes a childhood spent in many places due to his father’s job at General Electric. For a time, he lived in Huntsville, Alabama near the NASA Marshall Space Flight Center, which piqued his interest in science and space. Kasting discusses his undergraduate studies at Harvard University, where he gravitated toward theory over experimentation while studying chemistry and physics. His developing interest in astronomy and space science led Kasting to graduate school first at UC San Diego, then University of Michigan. He recalls his postdoc at the National Center for Atmospheric Research and then his position at NASA’s Ames Research Center working with Jim Pollack. Kasting discusses his return to academia at Penn State, as well as the committees and panels he has served on over the years, such as the Terrestrial Planet Finder Science working group. Throughout the interview, Kasting talks about many areas of his research such as habitable zones, climate models, atmosphere studies, and extrasolar planets. The interview concludes with Kasting’s thoughts on extraterrestrial intelligent life and sending manned missions to Mars.

Interview with Steven Squyres, American geologist and planetary scientist. Squyres discusses his childhood in New Jersey, in a family where both parents had science education. He recalls his interest in science from a young age and his formative trips to the Colorado Rockies which inspired him to study geology. Squyres recounts his time as an undergraduate at Cornell University, where he began as a geology major but later became interested in space science. He discusses his continuation at Cornell for his graduate studies in planetary science, where he studied under Carl Sagan and worked on the Voyager imaging team. Squyres then recalls his post-doctoral position at NASA’s Ames Research Center before accepting a faculty position at Cornell. He discusses the move toward robotic exploration and touches on topics such as the Mars Observer mission and the Martian meteorite controversy. Squyres reflects on writing his book “Roving Mars” and concludes the interview with his thoughts on the broader significance of geological research on Mars. 

In this interview, astronomer Massimo Stiavelli discusses his involvement with the Hubble and James Webb Space Telescopes. He recounts his early childhood growing up in Italy, higher education at the Scuola Normale Superiore in Pisa, and his interest in elliptical galaxies. He reflects on his time as a postdoctoral researcher at Rutgers University, his time at the European Southern Observatory, and his role deriving signs from the Hubble Space Telescope’s aberrated data. Stiavelli discusses his position with the European Space Agency in Baltimore, along with the initial developments of the Next Generation Space Telescope. He also offers his perception on the Space Telescope Science Institute and the scientists working there. He recalls his early involvement with the NGST’s Science Working Group, his role as Project Scientist, and his perspective on the growing schedule and budget delays that led to Congressional hearings. Stiavelli also recalls the impact of the Covid-19 pandemic on the final stages of Webb’s development, the launch, and its current operation. The interview concludes with an overview of Stiavelli’s views on the future of cosmology and the impact of JWST.

Interview with Loren Acton, American physicist and astronaut. Acton recounts his childhood in rural Montana and his decision to study engineering physics at Montana State University. He describes becoming interested in geophysics, leading him to pursue graduate school at the University of Colorado. Acton recalls his graduate work at the Lockheed Pao Alto Research Laboratory, working on his first solar x-ray experiment. He discusses his involvement in the astrogeophysics department at Colorado and his work on solar radiation satellites at the Naval Research Laboratory. Acton stayed at Lockheed upon completing his doctorate, and he describes his work on projects that employed instruments carried on rockets and satellites. He reflects on his exciting appointment as a payload specialist on the space shuttle, flying in 1985. Acton then turns to his time at Goddard Space Flight Center working on the Solar Max Mission, and he also discusses his collaboration with Japanese scientists on the Spacelab 2 mission. He discusses his return to Montana State University to help form the solar physics program. The interview concludes with Acton’s reflections on running for elected office and the role of scientists in politics. 

Interview with Mehmet Alpaslan, NASA Postdoctoral Program Fellow. The interview begins with Alpaslan recounting his childhood in Turkey and several other countries, as his parents worked for the Turkish Foreign Ministry. He recalls reading Carl Sagan’s Cosmos as a teen, which sparked his intereste in astronomy. Alpaslan discusses his decision to attend the University of St. Andrews where he studied physics and astronomy. He describes his undergraduate research in modified Newtonian dynamics, as well as his introduction to extragalactic astronomy by Simon Driver, who eventually became his PhD advisor. Alpaslan discusses his PhD work with the Galaxy and Mass Assembly Survey (GAMA), including his time at the Anglo-Australian Telescope and his work writing code for data analysis. He then explains the connections which led him to the NASA Postdoctoral Program where he is a fellow at NASA Ames Research Center. Alpaslan describes the joys of observation and working with telescopes, as well as the benefits and challenges of writing your own code from scratch. At the end of the interview, he shares that although careers in academia can be difficult, the ability to work on exciting science makes it worthwhile. 

In this interview, Chris Isbell discusses cartographic production techniques applied during analog and early digital eras, and the evolution and application of these and other related techniques as applied to numerous scientific and cartographic projects from early years (1970’s) through more recent times (late 2010’s). Isbell discusses his work at the United States Geological Survey (USGS) from his initial student appointment to the present, including planetary mapping, technical and computer programming work, working with NASA's Planetary Data System, and creating maps manually back in the hard copy era. He also discusses colleagues in related USGS departments, including: Ramona Bourdeau and the photo lab; Roger Carroll and Jim Vandivier in the drafting shop; the airbrush process used by Jay Inge and Pat Bridges at Lowell. He describes early digital processes, including Planetary Image Cartography System (PICS) and Integrated Software for Images and Spectrometers (ISIS). He discusses how NASA's Planetary Data System established cartographic standards, with the input of key people including Larry Soderblom and Hugh Kieffer. He discusses working on Voyager 1 at JPL, in a team including Soderblom, Kieffer, Ray Batson, Sherman Wu, Hal Masursky, Mike Carr, Gene Schaber, Randy Kirk, Annie Howington, Ray Jordon, and drafters Caroll and Vandivier. He also discusses Viking and the color mosaic of the equatorial belt of Mars, and the work of digital mapper Pat Chavez. He briefly discusses the planetary nomenclature program, run by Mimi Strobel, USGS representative to the International Astronomical Union (IAU), who was succeeded by Joe Russel, Jenny Blue, and Tenielle Gaither. The interview then moves to more personal questions; what brought Isbell to planetary mapping, where he would like to land on Mars, and what he would tell children about scientific research and creative work.