
Foto: Bill Spindler, U.S. Antarctic Program, National Science Foundation, Public domain, via Wikimedia Commons

Foto: NSF/Josh Landis, employee 1999-2001, Public domain, via Wikimedia Commons

Foto: Bill Spindler, U.S. Antarctic Program, National Science Foundation, Public domain, via Wikimedia Commons

Foto: Bill Henriksen, National Science Foundation, Public domain, via Wikimedia Commons

Ilustračná foto: unsplash