91av

Skip to content

Escher: The paradoxical artist beloved by mathematicians

Mathematics

Escher: The paradoxical artist beloved by mathematicians

A new retrospective of M.C. Escher’s work opens this week. Explore some of his most mind-bending, mathematically inspired works here

Regulars

The distant world that is our best hope of finding alien life

Space

The distant world that is our best hope of finding alien life

Features

Tigerite Rock, Australia

Environment

Stunning photographs show the dynamic patterns of the natural world

Regulars

Crisis in cosmology: If we’ve got dark energy wrong, what could it be?

Space

Crisis in cosmology: If we’ve got dark energy wrong, what could it be?

Features

91av’s guide to the 21 best ideas of the 21st century

Humans

91av’s guide to the 21 best ideas of the 21st century

Features