Final answer:
Dr. George R Carruthers earned his degree in Physics and is recognized for his contributions to astrophysics and space science.
Step-by-step explanation:
Dr. George R Carruthers earned his degree in the field of Physics. He is well known for his work as an astrophysicist and inventor, particularly for his invention of the ultraviolet camera/spectrograph used for the 1972 Apollo 16 mission. His significant contributions to the field of space science have made him a notable figure in the area of astronomy and space exploration.