Astronomer. He was the son of the Reverend Francis H.P. Beals and his wife Annie Florence Nightingale Smith, his sister was the artist and educator Helen Dorothy Beals. Born on June 2, 1899, in Canso, Nova Scotia, he attended Acadia University in Wolfville, Nova Scotia, and received his Bachelor's Degree in 1919. He then attended Yale University in New Haven, Connecticut, for doctoral studies, but his failing health put an end to that in 1921. He returned to Canada and enrolled at the University of Toronto in Toronto, Ontario, where he obtained his Master's Degree, in 1922. That same year, he took a teaching job at the University of Toronto in Toronto, Ontario, for one year, before relocating to London, England, where he attended the University of London, and where he was able to obtain his Doctoral Degree in physics in 1926. He later returned to Canada and was hired as an assistant professor in physics at the University of Acadia in Wolfville, Nova Scotia. He only stayed for one year before accepting a job in 1927 at the Dominion Astrophysical Observatory in Victoria, British Columbia. Shortly after his arrival in Victoria, British Columbia, he began to perfect or invent new instruments for the observatory’s telescope. He established a reliable temperature scale for very hot stars and was the first to demonstrate that their emission spectra are proof that they are surrounded by large gaseous envelopes. He wrote a thesis on the subject and received a second Doctoral Degree from the University of London in London, England, in 1934. He also discovered that the wide emission lines from Wolf-Rayet and P Cygni-type stars are the result of gaseous material ejecting from their surfaces. He was also the first to recognize that the gas in interstellar space is not uniformly distributed and that it is locally concentrated into clouds that move at high speeds. In 1940, he became Adjoint Director of the Dominion Astrophysical Observatory of Victoria in Victoria, British Columbia. He left his post in 1946 for the Dominion Observatory in Ottawa, Ontario, and became the Director of the Dominion Observatory the following year, at which time he immediately embarked on an ambitious campaign to revive the institution. He attracted many young researchers to Ottawa, Ontario, and improved the institution’s seismological, gravimetric, magnetic and solar facilities, modernized its official time distribution service, installed new telescopes in the provinces of Ontario, Alberta and British Columbia, installed cameras to observe meteors in the province of Alberta, and established the Dominion Radio Astrophysical Observatory in Penticton, British Columbia. In 1956, he began publishing geophysical studies on terrestrial and lunar impact craters, and in so doing demonstrated that meteorite bombardment played a major role in the formation of the planets, including Earth. For his contributions to astronomy, he was elected a Fellow of the Royal Society in London, England, in 1951, was awarded the Henry Marshall Tory Medal in 1957, and was made an Officer of the Order of Canada in 1969. In 1981, the Astronomical Society of Canada created the Carlyle S. Beals Award, given every two years to a Canadian astronomer, or an astronomer working in Canada, in recognition of their outstanding achievement in research. The asteroid 3314 Beals and the crater Beals on the Moon are both named after him in 1987. He passed away in Ottawa, Ontario, on July 2, 1979, at the age of 80, and was buried in the Capital Memorial Gardens in that city.