That’s the situation that faced authorities in Australia, as they scoured over a thousand kilometers of desert highway for a tiny missing radioactive source with the potential to cause serious harm.

New geochemical evidence points to the color change resulting from red Australian desert dust carried across the Tasman Sea.

The nighttime ascent is the final highlight of this very Australian ... Trail from the desert city of Alice Springs through the West MacDonnell Range, a mountain chain in the red heart of the ...