Where Science and Christmas Meet: Latvian-Born Astronomer Kārlis Kaufmanis’ Explanation of the Star of Bethlehem

Author
Ilze Stikāne, researchLatvia

December 20, 2024

space research

Latvian-born astronomer, graduate of the University of Latvia (UL) Kārlis Kaufmanis (1910–2003) became internationally renowned for his exceptional ability to bridge scientific discoveries with cultural and religious contexts. His famous "Star of Bethlehem Lecture", also aired on the international American broadcasting station "Voice of America", became a beloved Christmas tradition in the United States, delighting thousands of listeners. In this lecture, Kaufmanis provided a scientific explanation for the celestial symbol of the Star of Bethlehem from the Christian tradition, suggesting it may have been the conjunction of Jupiter and Saturn - a rare astronomical event. 

Kārlis Kaufmanis, Emeritus Professor of Astronomy at the University of Minnesota, dedicated much of his career to lecturing on the Star of Bethlehem. This celestial phenomenon is central to the Christmas narrative of Christian tradition. He explained that the wise men mentioned in the Gospel of Matthew in the New Testament might not have seen a literal star but rather the Great Conjunction of Jupiter and Saturn. 

Kaufmanis’ lectures gained widespread popularity, particularly during Christmas, appealing to believers and those with a scientific interest. As a profoundly religious man, Kaufmanis found the topic to hold special meaning, allowing him to integrate his scientific knowledge with his spiritual worldview. 

The Legacy of Kārlis Kaufmanis 

Throughout his academic career, Kaufmanis taught two courses at the University of Minnesota, including "Introduction to Astronomy", which was attended by over 26,000 students. Known for his enthusiastic teaching style, Kaufmanis often received standing ovations from his students – a rare honour among lecturers. 

Although Kaufmanis authored more than 20 books, he admitted that his passion for teaching left little time for extensive research. Even after retiring, he continued to deliver lectures on the Star of Bethlehem, which became a cherished Christmas tradition for many astronomy enthusiasts, particularly in Minnesota, USA. 

Prof. emeritus Kārlis Kaufmanis was admired for his passion for astronomy by both his students at Riga City Gymnasium No. 2 and those at the University of Minnesota. They fondly recalled how his eyes sparkled like the stars he spoke of so passionately. Kaufmanis likened lecturing to performing a beautiful piece of music, emphasizing that it never became tiresome.

Kārlis Kaufmanis left an indelible mark on both Latvian and American academic and cultural life, inspiring people to this day. 

124535023_808efb71-3ef3-4442-a431-a5144b176f6e.jpeg
Latvian-born astronomer Kārlis Kaufmanis (1910 - 2003). Photo: findagrave.com. 
From Riga to Minnesota 

While studying at the Riga Teachers’ Institute, Kārlis Kaufmanis showed a keen interest in algebra, geometry, and trigonometry – subjects that formed the foundation of his future career. During his studies at the University of Latvia’s Faculty of Mathematics and Natural Sciences (1934 - 1939), he also worked at the university’s Astronomical Observatory, gaining practical experience in star observation. 

After graduating, Kaufmanis began teaching at Riga City Gymnasium No. 2, covering various subjects, from algebra and geometry to chemistry and cosmography. His book Pasaules telpā (In the Vastness of Space) was published that same year. While not intended as a textbook, the book offered a structured and accessible introduction to astronomy, making the subject approachable to a broad audience. 

In 1949, Kaufmanis and his family emigrated to the United States, where he began teaching mathematics and astronomy at Gustavus Adolphus College in St. Peter, Minnesota. In 1962, he was invited to join the University of Minnesota, where he taught until retirement. 

Recommended articles

medicine research

University of Latvia and Riga East Clinical University Hospital join forces to advance cancer diagnostics in Europe

The University of Latvia (UL), within the framework of the EUCAIM (European Federation for Cancer Images) project, has signed a cooperation agreement with Riga East Clinical University Hospital to launch the prospective collection and aggregation of mammography images and related clinical data in L…

University of Latvia Institute of Clinical and Preventive Medicine

November 4, 2025

opportunity entrepreneurship research

Deep Tech Entrepreneurship and Mentoring Programme “Ignition Qualifiers”

As part of the AGRI-BIOCIRCULAR-HUB project, the Latvian Investment and Development Agency (LIAA) invites enterprising professionals, researchers and innovators from the agricultural, food and biocircular economy sectors from Ukraine, Latvia and Poland to apply for the Ignition Qualifiers entrepren…

Latvian Investment and Development Agency

October 30, 2025

quantum technologies space collaboration

Space and Quantum – Latvia’s Contribution to Europe’s Future Technologies

Latvia is strengthening its position in the European technology landscape by advancing quantum communication and space research in cooperation with international partners. “Techritory 2025” is a European-level forum on the future of digital policy and innovation, held in Riga since 2018. This year,…

The Ministry of Education and Science

October 29, 2025

research research

Researchers Test Various Heating Materials; Brewing Waste – Drabs – Earns Praise

Researchers at Riga Technical University (RTU) are testing heating pellets made from a wide range of plants and plant residues. By the end of the year, they promise to develop a tool that will allow anyone to determine the most economical way to heat their home. Traditionally, wood pellets a…

Ilze Kuzmina, Latvian Radio News Service correspondent

October 23, 2025