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A Hidden Side of Lanthanides
Chemists have synthetized—and for the first time experimentally analyzed—a molecule based on an extremely unstable form of thulium, one of the lanthanide metals whose startling properties lend them...
Methane Concentrations on the Rise
For the first time, a complete report on methane emissions has been published. After stabilizing in the early 2000s, methane concentrations in the atmosphere began to increase again in 2007, rising...
Europe Heads to Mars
With its probe scheduled to land on Mars on October 19th, ExoMars 2016 is the first of two European missions to investigate the Red Planet’s atmosphere and find evidence of past life under its...
Permafrost: A Ticking Time Bomb
Frozen for thousands of years, the Arctic's permafrost soil is gradually thawing due to climate change—and releasing potent greenhouse gases into the atmosphere. As Paris prepares to host the...
The Legacy of World War I
WWI: Origins of a Conflict
The Sound of 18th-Century Paris
Scientists Issue a Warning to Humanity
A Mysterious Volcanic Eruption in the Middle Ages
Pizza: Globalization for Dinner?