Techbytes: Artemis II blasts off in historic return of humans to deep space (Al Jazeera)

The mission, which blasted off on Wednesday, represents a major milestone in NASA’s ambitious plan to return humans to the moon and eventually send astronauts to Mars. Thousands of spectators gathered along Florida’s coast to witness the historic liftoff.The Artemis II crew comprises NASA astronauts Reid Wiseman, Victor Glover and Christina Koch, alongside Canadian Space Agency astronaut Jeremy Hansen. The four are expected to undertake a nearly 10-day journey around the moon and back, travelling farther into space than any human crew in decades.

“On this historic mission, you take with you the heart of this Artemis team, the daring spirit of the American people and our partners across the globe, and the hopes and dreams of a new generation. Good luck, Godspeed Artemis II. Let’s go,” said launch director Charlie Blackwell‑Thompson.

Five minutes into the flight, mission commander Wiseman reported the crew’s first sighting of their destination. “We have a beautiful moonrise, we’re headed right at it,” he said from the capsule. The launch followed months of technical preparations and delays, including concerns over hydrogen leaks detected during earlier testing.

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However, NASA confirmed that no significant hydrogen leaks were detected during final fueling operations, allowing engineers to successfully load more than 700,000 gallons (2.6 million litres) of fuel into the Space Launch System rocket. According to Al Jazeera, engineers also resolved several technical issues ahead of liftoff, including problems with commands to the rocket’s flight-termination system, designed to trigger a self-destruct signal if the rocket veers off course. Another concern involving temperature readings in a battery within the Orion capsule launch-abort system was also addressed before launch.

Once in orbit, the crew began extensive system checks, including testing Orion’s life-support, propulsion, navigation and communications systems to ensure the spacecraft is ready for deep space operations. Following these checks, Orion will perform a critical manoeuvre known as translunar injection, sending the spacecraft out of Earth’s orbit and onto a trajectory toward the moon. The journey will take several days, with the astronauts continuing to monitor spacecraft systems as they travel farther from Earth.

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