ESA's Mars Express orbiter captures latest sign of 'spiders' The latest images of the formations, which are channels of gas measuring 0.03 to 0.6 miles across, were most recently captured by ESA's ...

When led in 1911 to Machu Picchu's ruins with the assistance of local guides, Bingham believed he'd found it at last. But the ruins already bore a charcoal inscription: "A. Lizárraga, 1902." ...