Conducted. these astronauts, private astronauts, spent 14-hour days trying to get all of this continue. the thing that larry connor says surprised him the most was just how difficult it was to actually do all that research in microgravity despite all of that training that the axiom mission had. they say they still were grateful to they had professional nasa astronauts on board. he called it a humbling experience. grateful for some toilet diplomacy, too. who knew there was such a thing? kristin fisher, thank you. reporter: you bet. very i go good morning to y. i m reporting from lviv. i m bianna golodryga in new york. right now frustrations are mounting as russia blocks ukraine s latest efforts to get hundreds of civilians out of a steel plant in mariupol. this is the third or fourth time we ve seen these attempts fail. the city official says that russians have closed off an area