Lightning flashes around the ash plume rising from the Puyehue-Cordon Caulle volcano Entrelagos, Chile, on Sunday (Reuters photo by Carlos Gutierrez). Dormant for half a century, the volcano erupted in south-central Chile Saturday, throwing ash more than 10 km into the sky, as winds propelled to toward Argentina, prompting the evacuation of several thousand residents. José Pujol, graphics editor of the Spanish website público.es has assembled a stunning selection of photos of the eruption. Here’s one more, by Ian Salas of the Spanish news agency EFE. H/T: Adrian Noskwith...

The European Southern Observatory's Very Large Telescope (VLT) on Cerro Paranal, a 2,635 m high mountain in the Atacama Desert in northern Chile, combines the light from four fixed optical telescopes equipped with 8.2 meter (27 foot) lenses with that from four moveable auxiliary telescopes equipped with 1.8 meter (6 foot) lenses to produce images of the southern sky with a resolution of one milliarcsecond. This means it could distinguish the gap between the headlights of a Ford pickup parked on the Moon (if they had Fords on the Moon, and no winter parking ban). The observatory's José Francisco Salgado and...