Eyewitnesses have reported seeing pro-Russian rebels force-marching dozens of Ukrainian prisoners-of-war along a main street in the rebel-held town of Donetsk in eastern Ukraine.
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He told People Magazine: "I was in denial, but a part of me always knew this was coming."
A compound within the Conus regius snail's venom has been found to create long-lasting pain relief.
NASA says the phenomenon is "quite unusual to see".