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Around 12,000 years ago, something scorched a vast swath of the Atacama Desert in Chile with heat so intense that it turned the sandy soil into widespread slabs of silicate glass. Now, a research team studying the distribution and composition of those glasses has come to a conclusion about what caused the inferno. In a study published in the journal Geology, researchers show that samples of the desert glass contain tiny fragments with minerals often found in rocks of extraterrestrial origin. Those minerals closely match the composition of material returned to Earth by NASA's Stardust mission, which sampled the particles...

The severely elongated head of a preserved skeleton found in Peru's Atacama Desert in 2003 is so unusual that it initially prompted people to suggest that the diminutive body was that of an extraterrestrial. Since then, DNA testing confirmed that the remains — which measure about 6 inches (15 centimeters) long — belonged to a human fetus that researchers named Ata. But the scientists who conducted that investigation and published their findings in March have recently come under fire for their methods. ...Their investigation, which did not include any Chilean researchers, may have sidestepped protocols that typically monitor the ethics...

Nearly two decades ago, the rumors began: In the Atacama Desert of northern Chile, someone had discovered a tiny mummified alien. An amateur collector exploring a ghost town was said to have come across a white cloth in a leather pouch. Unwrapping it, he found a six-inch-long skeleton. Despite its size, the skeleton was remarkably complete. It even had hardened teeth. And yet there were striking anomalies: it had ten ribs instead of the usual 12, giant eye sockets and a long skull that ended in a point. {snip} On Thursday, a team of scientists presented a very different explanation...

Explanation: Influenced by the strong Pacific El Nino, cloudy skies have more often come to Chile's high Atacama Desert this season, despite its reputation as an astronomer's paradise. Located in one of the driest, darkest places on planet Earth, domes of the region's twin 6.5 meter Magellan telescopes of Carnegie Las Campanas Observatory were closed on May 13. Still, a first quarter Moon and bright stars shine through in this panoramic night skyscape, the lunar disk surrounded by a beautiful, bright halo. The angular radius of the halo is 22 degrees. Not determined by the brightness or phase of the...

Much of a Pre-Columbian population in ancient Chile was poisoned by arsenic, say researchers. According to a recent study conducted by Jaime Swift of the Australian National University and colleagues from several other institutions in Australia and Chile, a significant part of a pre-Columbian population in northern Chile suffered from slow poisoning due to the intake of arsenic from water sources. The researchers performed plasma mass spectrometry trace element analysis of human bone and tooth samples from 21 burials excavated at the site of Caleta Vitor on the Pacific coast of northern Chile, a part of the ultra-dry Atacama Desert...

Explanation: Galaxies, stars, and a serene reflecting pool combine to create this memorable land and skyscape. The featured panorama is a 12-image mosaic taken last month from the Salar de Atacama salt flat in northern Chile. The calm water is Laguna Cejar, a salty lagoon featuring a large central sinkhole. On the image left, the astrophotographer's fiancee is seen capturing the same photogenic scene. The night sky is lit up with countless stars, the Large and Small Magellanic Cloud galaxies on the left, and the band of our Milky Way galaxy running diagonally up the right. The Milky Way may...

Explanation: Storm clouds do sometimes come to Chile's Atacama desert, known as the driest place on Earth. These washed through the night sky just last month during the winter season, captured in this panoramic view. Drifting between are cosmic clouds more welcome by the region's astronomical residents though, including dark dust clouds in silhouette against the crowded starfields and nebulae of the central Milky Way. Below and right of center lies the Large Magellanic Cloud, appropriately named for its appearance in starry southern skies. City lights about 200 kilometers distant still glow along the horizon at the right, while bright...

Dr Steven Greer, who led the project and documentary, has hit back at critics who claim the body is a hoax. 'The CAT scan clearly shows internal chest organs -lungs and what appears to be the remains of a heart structure,' he said. 'There is absolutely no doubt that the specimen is an actual organism and that it is not a hoax of any kind. 'This fact has been confirmed by Dr. Nolan and Dr. Lachman at Stanford.'

Boulder, CO, USA – A geologist's sharp eyes and upset stomach has led to the discovery, and almost too-close encounter, with an otherworldly geological process operating in a remote corner of northern Chile's Atacama Desert. The sour stomach belonged to University of Arizona geologist Jay Quade. It forced him and his colleagues Peter Reiners and Kendra Murray to stop their truck at a lifeless expanse of boulders which they had passed before without noticing anything unusual. "I had just crawled underneath the truck to get out of the sun," Quade said. The others had hiked off to look around, as...

Winds ravage Neolithic village in Chile February 12, 2007 - 12:39PM Deep within the wind-swept Atacama desert in northern Chile, the remnants of a forgotten civilisation rise from the sand. At first the ruins are barely visible, just small ridges that cast short shadows. But where the sand has been stripped away, circular clay structures can be clearly seen. These are the 3,000-year-old remains of Tulor, one of the oldest and best-preserved Neolithic villages in South America. The ruins consist of low two-room houses, a cemetery and stables. They were inhabited as far back as 800 BC, more than 2,000...

Link post: link provided to the thread in the FR chat section, where interested readers can view the images and post any commentary: Geology Pictures of the Week, October 24-31, 2004: Ghostly Gas, Bone Dry, Black Dragon's Caldron

Incandescent gas release over a skylight, Etna's current eruption Photos de l'eruption 2004 (2) Valle de Luna, Atacama Desert (Chile) Photo Gallery, Atacama Desert, Chile Black Dragon's Caldron, Yellowstone (Sour Lake at top left): Mud Volcano Area