The American oil and gas giant is "beginning the process to discontinue operations" at the Sakhalin-1 project off Russia's eastern coast. The company also says it won't make new investments in Russia.
Russian forces appear to be escalating attacks on urban areas of Ukraine as 680,000 people have fled their homes. Sanctions are piling up, and the West is supplying more military hardware to Ukraine.
NPR's Sacha Pfeiffer speaks with Angela Stent, a senior fellow at the Brookings Institution, about what could be guiding Putin's decision-making in Ukraine.
The lessons of Moscow's involvement in Syria's civil war stand as a specter of the heavy-handed playbook experts fear could be used on an even larger and more deadly scale in Ukraine.
Yellowstone became the first national park in the U.S. on March 1, 1872, and it helped usher in the broader national park movement. The park stretches into Wyoming, Montana, and Idaho.
Russian President Vladimir Putin gave orders to his nation's nuclear forces over the weekend, but their exact meaning is unclear. Russia has more nuclear weapons than any other nation.