In 2012, we lost several historical figures who contributed to some of the world's greatest advancements. Neil Armstrong, the first man to walk on the moon, passed away in August at the age of 82. And Sally Ride, the first woman in space, made incredible strides for NASA, as well as for women in STEM.
SEE ALSO: Neil Armstrong Took the Hardest Step for All of Us
This list highlights well-known people who have paved the way for others working in science and technology. They've not only impacted their professions, but also increased human understanding of the world we live in.