Exploration and Discovery in photography

Exploration: Looking for something that is unknown. This could be trying out a different type or style of photography no-one has done before.
Examples
     Roger Mayne: He is known for his social documentary street photographs of London in the late 1950s. His emphasis in the Southam Street series is upon the life and energy of children and young people, against their decaying urban environments. He has also made a photographic chronicle of his family and is known for his contributions to the Shell Guide to Devon.
 He was the first to explore this style of photography and others have followed in his footsteps such as Bruce Gilden

Discovery: Finding something that is unknown.
Discovery could be finding a different type or style of photography.
  Maud Sulter: She is a poet, historian teacher and artist working with installation, photography and video. Born of Scots and Ghanain parentage, her work addresses issues of the representation of black women in Western culture. Her series Zabat, is a cycle of studio portraits of creative black women, each representing one of the nine muses of classical antiquity.