section_path: Economy/Science and technology
section_name: Science and technology
paragraph_text: Science and technology
  
  In 2020, Canada spent approximately $41.9 billion on domestic research and development, with supplementary estimates for 2022 at $43.2 billion. As of 2023, the country has produced 15 Nobel laureates in physics, chemistry, and medicine. The country ranks seventh in the worldwide share of articles published in scientific journals, according to the Nature Index, and is home to the headquarters of a number of global technology firms. Canada has one of the highest levels of Internet access in the world, with over 33 million users, equivalent to around 94 percent of its total population.
  
  Canada's developments in science and technology include the creation of the modern alkaline battery, the discovery of insulin, the development of the polio vaccine, and discoveries about the interior structure of the atomic nucleus. Other major Canadian scientific contributions include the artificial cardiac pacemaker, mapping the visual cortex, the development of the electron microscope, plate tectonics, deep learning, multi-touch technology, and the identification of the first black hole, Cygnus X-1. Canada has a long history of discovery in genetics, which include stem cells, site-directed mutagenesis, T-cell receptor, and the identification of the genes that cause Fanconi anemia, cystic fibrosis, and early-onset Alzheimer's disease, among numerous other diseases.
  
  The Canadian Space Agency operates a highly active space program, conducting deep-space, planetary, and aviation research and developing rockets and satellites. Canada was the third country to design and construct a satellite when in 1962 Alouette 1 was launched. Canada is a participant in the International Space Station (ISS), and is a pioneer in space robotics, having constructed the Canadarm, Canadarm2, Canadarm3 and Dextre robotic manipulators for the ISS and NASA's Space Shuttle. Since the 1960s, Canada's aerospace industry has designed and built numerous marques of satellite, including Radarsat-1 and 2, ISIS, and MOST. Canada has also produced one of the world's most successful and widely used sounding rockets, the Black Brant.