NASA is taking another crack at fueling its giant moon rocket after leaks halted the initial dress rehearsal and delayed astronauts' first trip to the moon in more than half a century. Launch teams on Thursday began pumping more than 700,000 gallons of fuel into the rocket at Florida's Kennedy Space Center. It's the most critical and challenging part of the two-day practice countdown. The outcome will determine whether March is possible for the Artemis II lunar fly-around with four astronauts. Two weeks ago, dangerous amounts of liquid hydrogen escaped during the operation. NASA replaced two seals and a clogged filter.

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FILE - Team Canada hockey players, left to right, Sam Reinhart, Connor McDavid and Sidney Crosby speak to the media at Hockey Canada's National Teams orientation camp in Calgary, Alberta, Wednesday, Aug. 27, 2025. (Jeff McIntosh/The Canadian Press via AP, File)

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FILE - Canada's Sidney Crosby and Connor McDavid skate together following 4 Nations Face-Off hockey practice in Brossard, Quebec on Monday, Feb. 10, 2025. Canada will face Sweden on February 12. (Christinne Muschi/The Canadian Press via AP, File)