For Angela, who is interested in astronomy and space travel, the best fit would be John Cornforth. He was a renowned scientist who made significant contributions to chemistry and won the Nobel Prize in Chemistry in 1975. Although he is primarily known for his work in chemistry, his research has implications in various scientific fields and can be connected to broader areas, including space science and materials relevant for space travel. The other individuals listed, such as Thomas Edison and Vinton Cerf, are notable figures, but Cornforth's work can be more closely aligned with scientific principles that may be applicable in space-related research.
Olaf Hassal is not a widely recognized figure in this context, which makes Cornforth the best choice for Angela's interests.