Khongoryn Els Sunset The setting sun over the huge Khongoryn Els sand dunes in the Gobi desert.

Khongoryn Els Sunset The setting sun over the huge Khongoryn Els sand dunes in the Gobi desert.

The Alberta government says new legislation about which flags can be displayed at schools will take effect in January. Those rules include making the Alberta and Canada flags mandatory, and prohibiting flags that "advance a social or political cause."

Camel A camel near Khongoryn Els in the Gobi desert.

A first-of-its-kind cancer vaccine is significantly reducing the chances that melanoma patients' tumors come back, according to results of a major study released Thursday by drugmakers Moderna and Merck.