Today on CNN 10, we get an update on a deal signed between the US and Ukraine after weeks of negotiations and delays. We also check in on two astronauts at the International Space Station as they complete the fifth ever all-female spacewalk. Then we'll find out what's causing an environmental crisis for Florida's manatees, before learning why one zoo is using puppets to feed one of its newest animals. All this and more on today's CNN 10! 

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