Luc Pigeon

220 Added | 5 Magazines | 2 Likes | 5 Following | 231 Followers | @lpigeon | Canadian Geoscientist living in Lima, Peru

Tomatosphere™

The next batch of seeds in space!<p>Sowing the seeds of discovery through student science<p>Home base on the moon. Boot prints on Mars. Visits to …

Scientists see deeper Yellowstone magma

The study in <i>Science</i> is titled, "The Yellowstone magmatic system from the mantle plume to the upper crust." Huang, Lin, Farrell and Smith conducted …

Peru recalls ambassador to Chile over 'military espionage'

<b>The Peruvian government has recalled its ambassador to Chile over allegations of military espionage.</b><p>The Peruvian foreign ministry said its ambassador would not return to Santiago until Chile gave assurances that the incident would not be repeated.<p>Peru said last month it had evidence that three …

South America

Volcano grows Japanese island

<b>(CNN) —</b> Magma and lava from a Japanese volcano is forming new geography in a remote part of the Pacific Ocean.<p>An eruption on the tiny volcanic island of Nishinoshima in November 2013 formed a small islet right next to it when molten lava cooled.<p>That islet has merged with its neighbor and continues …

Natural Disasters
Spying

Argentina oil company leaves Peru town after protests

<b>An Argentine oil company says it will withdraw from an area of the Peruvian Amazon where it has been prospecting for gas deposits.</b><p>The company, Pluspetrol, was asked to leave by the government after the death of a demonstrator in Junin province, during four days of violent protests.<p>The …

Oil & Gas Industry

Violent protests erupt in Peru over natural gas exploration

At least one person was killed and dozens injured in protests against natural gas exploration in a Peruvian jungle town, authorities and leaders said on Wednesday (February 11).<p>The protesters are primarily farmers who fear pollution from energy development in Peru’s southern region of Junin, said …

Heart of Earth's inner core revealed

<b>Scientists say they have gained new insight into what lies at the very centre of the Earth.</b><p>Research from China and the US suggests that the innermost core of our planet has another, distinct region at its centre.<p>The team believes that the structure of the iron crystals there is different from those …

Earth Science

Floods and mudslides hit Peruvian Amazon

Large parts of the Peruvian Amazon are under water after torrential rains caused rivers to burst their banks.<p>More than 3,000 families have been affected and a state of emergency has been declared.<p>Laura Westbrook reports.

Amazon River

A fossil flexes its muscle in Newfoundland, but it can't keep thieves away

One summer day in 2008, Jack Matthews and Alex Liu took their supervisor from the University of Oxford on a tour of their fossil finds on Newfoundland’s Bonavista Peninsula, on the eastern edge of Canada.<p>Their demonstration didn’t quite go according to plan.<p>"He stepped down onto the surface, sat …

Paleontology

Peru evacuates Amazon village after raid by indigenous tribe

At least 39 people taken to Puerto Maldonado as officials search for motive behind latest bow-and-arrow attack by members of Mashco-Piro tribe<p>Authorities in Peru have sent riverboats to evacuate a remote jungle village after it was raided by an indigenous tribe that has long lived in voluntary …

Strange rock containing 30,000 diamonds baffles scientists

Miners unearth rare rock stuffed full of diamonds that has baffled scientists<p>When Russian miners pulled a strange red and green stone out of the ground, they immediately knew it was different to the thousands of tons of ore they process every day.<p>In fact, what workers at <b>Alrosa</b>'s Udachnaya diamond …

Arctic Circle

Mystery Surrounds Delicate Nasca Lines Threatened by Greenpeace Stunt

Peru protests damage to ancient desert designs, still enigmatic to scholars.<p>Ancient line drawings in the Andean desert, one of history's biggest mysteries, generated a firestorm of complaints against an environmental group that damaged the lines in a stunt this week.<p>The environmental group …

Climate talks resume in Peru with clock ticking on global deal

Negotiators from more than 190 countries get together Monday in Lima for the last main stop of the U.N. climate negotiations on the road to a planned global warming deal in Paris next year.<p>The slow-moving talks have gained momentum in the past two months with pledges from the world's top carbon …

Climate

Severe El Niño stunted Peruvian children’s height

Floods in Peru from a severe El Niño event 17 years ago have stunted the growth of children born around that time by several centimetres.<p>“The …

US returns dozens of stolen artifacts to Peru

DENVER (AP) — Dozens of artifacts are on their way back to Peru after being seized in the United States during investigations into the smuggling of cultural relics.<p>Investigators from U.S. Immigration and Custom Enforcement's Homeland Security department held ceremonies in Denver, San Antonio and …

How Might We Grow Plants In Space? - The Fox Is Black

I’ve never stopped to think about how we might grow plants in space. I’ve only really thought about those enormous geodesic domes that you see in …

Peru's Humala abruptly replaces his finance minister with key adviser | Reuters

LIMA (Reuters) - Peru’s President Ollanta Humala replaced his influential finance minister with the ministry’s chief adviser late on Sunday in a surprise shake-up that comes amid the worst economic slowdown in five years.<p>Peru's Economy Minister Luis Castilla talks to the foreign media during a news …

Doped graphene nanoribbons with potential

Graphene is a semiconductor when prepared as an ultra-narrow ribbon – although the material is actually a conductive material. Researchers from Empa …

Faraway moon mimics Earth tectonics

Jupiter's icy moon Europa may have active tectonic plates similar to those that shape the Earth, which had long been thought unique in this respect, …

Rethinking basic science of graphene synthesis shows route to industrial-scale production

A new route to making graphene has been discovered that could make the 21st century's wonder material easier to ramp up to industrial scale. …

Ultra-thin, high-speed detector captures unprecedented range of light waves

New research at the University of Maryland could lead to a generation of light detectors that can see below the surface of bodies, walls, and other …

More members of Amazonian tribe seek help from Brazil

Group of 23 men, women and children cross border from their territory in Peru and are being monitored by health ministry<p>More than 20 members of an isolated Amazonian tribe have made contact with the Brazilian authorities amid growing fears that they are being driven from their forest home by drug …

Understanding graphene's electrical properties on an atomic level

(Phys.org) —Graphene, a material that consists of a lattice of carbon atoms, one atom thick, is widely touted as being the most electrically …

Los Angeles awaits earthquake that could be the 'Big One'

A mega-quake in America's second most populous city is long overdue, and 50-year-old buildings could come crashing down, killing thousands<p>Next year residents of Los Angeles will flock to cinemas to see a blockbuster called San Andreas in which their city will be wiped out by an apocalyptic …

The bend in the Appalachian mountain chain is finally explained

The 1500 mile Appalachian mountain chain runs along a nearly straight line from Alabama to Newfoundland—except for a curious bend in Pennsylvania and …