Photo of the Day

Chinstrap penguins nest with their chicks on Thule Island. This uninhabited island is part of the chain of the South Sandwich Islands, which lie in between South America and Antarctica.

Storm clouds gather over "the Wall" in Badlands National Park, South Dakota. Three river systems eroded these claystone formations over half a million years.

In a remote Afghan village, women attend health and hygiene classes taught by a travelling midwife, pictured here in the white hijab and glasses.