NASA cancelled the second plan to launch an ambitious test flight of its new moon rocket on Saturday, currently due to a stubborn leak that delayed fueling. 

HIGHLIGHTS
NASA engineers had tried to staunch the fuel leak at the time of the Artemis 1
Engineers repressurize with hydrogen and return to warm-and-chill technique
NASA already planned to launch four astronauts to the International Space Station

The space agency had wished to launch its Artemis 1 moon mission atop a eminent Space Launch System (SLS) mega-rocket at 2:17 p.m. EDT on Saturday, however a hydrogen fuel leak detected about seven hours before liftoff thwarted the try.

NASA engineers had tried to staunch the fuel leak at the time of the Artemis 1 countdown. First, they had tried to heat the tank connecter and chill it with cold fuel to reseat the hydrogen quick disconnect connecter. After this, the engineers tried to re-pressurize it with hydrogen and so came back to the warm-and-chill technique to prevent the leak. All the three tries were unsuccessful.

The delay, the second this week for NASA's Artemis 1 moon mission had suggested that the agency would have to wait till Monday at the earliest to create its next launch attempt. Well, if the source of the leak could get fixed in time.

As per Nelson, if NASA would like to roll out Artemis 1's SLS rocket back within its Vehicle Assembly Building hanger for repairs, the launch would get slip to October. NASA had already planned to launch four astronauts to the International Space Station on SpaceX's Crew-5 Dragon mission during the early period of October, therefore an Artemis 1 would launch that month would be later within the month. 

NASA presently encompasses a 90-minute window to launch Artemis 1 on Monday, with liftoff occurring at 5:12 p.m. EDT. If the agency does not try to launch on Monday, it may even try to launch on Tuesday, however the launch window was slim, simply 24 minutes. As per NASA, a Tuesday launch if tried would occur at 6:57 p.m. EDT. 

Artemis 1 would have a launch windows in mid-September, however NASA would possibly be pushed to mid-October due to the time required to roll back and forth between Pad 39B and therefore the Vehicle Assembly Building, mission managers have mentioned. That October window opens on Oct. 17 and would end on Oct. 31, with cut outs between Oct. 24 and 26 and on Oct. 28. 

Artemis 1 was NASA's first test flight of the Artemis program to come back astronauts to the moon by 2025. This mission was ab un-crewed test of the Space Launch System, NASA's most powerful rocket ever, and its Orion spacecraft would make sure both vehicles were safe for astronauts.

Once launched, Artemis 1 would simply over a month flying to the moon, looping Earth's natural satellite in a long orbit, and so returning to our planet for a landing Pacific Ocean off the coast of California.

Also Read: Within 1.4 Billion Deal SpaceX to Launch Five NASA Missions in Space