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with a ual rocket including a helium leak and valve issue led to a canceled launch in may. then last week s attempt stopped with less than four minutes before launch due to a software problem. the vehicle s trajectory continues to look good. reporter: today no room for error as boeing has been at the center of controversy. for the company s commercial aircraft, the infamous door plug blow-out earlier this year causing boeing in production delays and reputation. but tonight, a congratulations from elon musk, founder and ceo of rival spacex which has been nasa s main way to send astronauts to the iss for the last four years. starliner paving the way for a new chapter in space travel. and, marisa, where does today s launch put the competition among private companies in the space industry? reporter: well, lester, spacex is still far ahead. its rocket starship set to launch tomorrow morning. its fourth uncrewed test to return