Backgrounders

Learn about how craters are formed and about some of Canada's impact craters.

This backgrounder explains the difference between planets, dwarf planets and small solar system bodies, such as asteroids and comets.

Learn how people came to understand the source of cosmic radiation, as well as how this radiation impacts those who work in and travel on airplanes.

This backgrounder explains the different ways that cells repair damage to DNA.

Learn the basics of how DNA can be extracted from cells.

This backgrounder explains the effects of radiation on cells and DNA.

This backgrounder has information about both cosmic & neutron radiation.

This backgrounder helps explain the laws of Orbital Mechanics, including Newton’s Laws.