Head of Queen Elizabeth II, as at 77 years of age, bare headed, wearing necklace and earrings, facing right.
Obverse script
Latin
Obverse lettering
ELIZABETH II 25 CENTS D·G·REGINA
SB (Translation: Elizabeth II Queen by the grace of God)
Reverse description
The reverse features a central core image of Challenger superimposed over Earth. The realistic design of the space shuttle is surrounded by concentric circles representing different sections of Earth`s atmosphere. The inner core represents the troposphere where the shuttle launched, the inner ring is the thermosphere where the shuttle orbited, and the outer ring is outer space. The 35 maple leaves which adorn the outer ring represent the commemorated 35 years, also identified with the `1984–2019` as printed on the coin along with `CANADA.`
