The programming language known for its use in data science and machine learning is Python. Its simplicity and readability make it an ideal choice for beginners and experts alike. Python has a rich ecosystem of libraries and frameworks, such as Pandas, NumPy, Scikit-learn, and TensorFlow, which facilitate data analysis, statistical modeling, and machine learning tasks. Moreover, Python’s community support and versatility in various applications contribute to its dominance in the data science field.