Up to 6,000 Russians may have been killed in Ukraine, U.S. official estimates
The official stressed that the death toll is difficult to assess in real time, but still called them "very, very significant casualties."
World
Stunning photos of climate change
These images paint a startling picture of the environmental changes afoot across the globe as temperatures rise.
Pfizer plans no further investment in Russia, says CEO Albert Bourla
Bourla doesn't anticipate supply disruptions resulting from the conflict.
Andy Murray to donate this year's prize money to children in Ukraine
The three-time Grand Slam champion said he's working with UNICEF to provide urgent medical supplies and early childhood development kits.
Ukrainian lawmaker and social media warrior discusses the battle online
Web exclusive: David Pogue's extended conversation with Inna Sovsun, a professor and Ukrainian Parliament member who's now active in the social-media resistance.
Russia's military weaknesses exposed in Ukraine, former commander says
Retired Lieutenant General Ben Hodges said that Russia's invasion of Ukraine has exposed its shortcomings.
18 attacks on Ukrainian hospitals and ambulances, WHO says
A children's hospital and maternity facility in Mariupol suffered "colossal" damage from what Ukrainian officials said was a Russian strike.
Ukraine says power cut at Chernobyl plant risks "nuclear discharge"
The country's energy minister says backup generators should be able to keep vital cooling systems running, but stresses electricity must be restored "as quickly as we can."
Coke and Pepsi suspend business in Russia, cite "events in Ukraine"
World's largest beverage companies join McDonald's in stopping short of direct condemnation of Moscow for invasion.
McDonald's closes in Russia, citing "suffering" in Ukraine
World's largest fast-food chain had faced boycott calls over its continuing to run 850 restaurants in Russia.
Famed shipwreck of Ernest Shackleton's Endurance found off Antarctica
Underwater drones helped searchers spot the wreck, described as remarkably intact, 108 years after ship went down in icy waters.
Venezuela frees two Americans amid talks hastened by Ukraine war
The U.S. and Venezuela were already revisiting their hostile relationship but the war -- and its resulting impact on oil and gas prices -- sped things up.
U.S. bans Russian oil and gas imports as Ukraine war creates 2 million refugees
"Russian oil will no longer be accepted in U.S. ports, and the American people will deal another powerful blow to Putin's war machine," the president said.
11-year-old Ukrainian flees to safety in Slovakia by himself
The boy's mother said she is a widow and explained she was unable to leave because she had to stay with her sick mother who cannot move on her own.
Biden bans Russian energy imports, targeting "main artery" of Russia's economy
"The decision today is not without cost here at home," the president said Tuesday, warning Americans to expect gas prices to climb higher.
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