Heidi and Peter, herding goats in Johanna Spyri's novel, Heidi.

Heidi and Peter

Heidi and Peter, herding goats in Johanna Spyri's novel, Heidi.

Three of the largest ice tongues of the Swiss Alps superposed on the same scale over Hubbard Glacier, Alaska.

Ice Tongues

Three of the largest ice tongues of the Swiss Alps superposed on the same scale over Hubbard Glacier,…