Messier 35 (M35), also known as "The Shoe Buckle," is an open star cluster located in the constellation Gemini. M35 contains over 2,500 stars and spans a diameter of about 24 light-years. It is situated approximately 2,800 light-years from Earth, and is estimated to be roughly 150 million years old, making it much younger and less tightly bound than the ancient globular clusters.