The Marsden Medal is awarded for a lifetime of outstanding service to the cause or profession of science, in the widest connotation of the phrase.
The Shorland Medal is awarded to an individual or to a team in recognition of major and continued contribution to basic or applied research that has added significantly to scientific understanding or resulted in significant benefits to society.
Hill Tinsley Medal (formerly known as the Research Medal)
The Hill Tinsley Medal is awarded for outstanding fundamental or applied research in the physical, natural or social sciences published during the year of the award or the preceding three calendar years. Applicants will normally be within their first 15 years after graduating PhD as at 1 January of the year in which their application is being considered, unless career breaks extend this period.
Cranwell Medal (formerly known as the Science Communicator Medal)
The Cranwell Medal is awarded annually to a practising scientist (or group of scientists) for excellence in communicating science to the general public, in any area of science or technology. Nominations are sought from scientific organizations, scientific associations and individuals.
You can find here an overview of past awardees.
How to apply