Today Artemis I launch has been scrubbed after an engine failure

Today Artemis I launch has been scrubbed after an engine failure.

KENNEDY SPACE CENTER, Florida (CNN) The launch of NASA’s historic Artemis I moon mission was postponed after the team failed to operate one of the rocket’s four engines.

Artemis I launched scrubbed as engine problem.


“It’s too early to say what the options are,” Artemis mission manager Mike Sarafin said at a NASA press conference. “To thoroughly review all the data and information, we need time.” We’ll play the full nine innings here. We’re still not prepared to give up. “

Today Artemis I launch has been scrubbed after an engine failure
Today Artemis I launch has been scrubbed after an engine failure

The next opportunity to send the Space Launch System rocket and the Orion spacecraft on their journey is Sept. 2, although it depends on how the exam goes whether or not another try is made that day.

Serafin confirmed that “Friday is definitely in the game” if the team can fix the issue while the Rockets sit on pads within the next 48 to 72 hours.

The following launch window will start on September 2 at 12:48 p.m. ET and close at 2:48 p.m. ET. After that, the following window is Sept. 5, opening at 5:12 p.m., and closing at 6:42 p.m. ET.

Based on a NASA update, “A bleed test to get the RS-25 engines under the main stage to the required temperature range for liftoff was not successful, and the time in the two-hour launch window was over,” said the launch controllers. Engineers are working to get more information.

The launch team knew the blood test was a risk because they had not been able to include it in previous wetsuit rehearsal tests simulating a launch, and it was demonstrated for the first time on Monday, Sarafin said.

Currently, the problem does not suggest an engine problem, he said, but rather a problem within the bleeding system used to cool the engine.

To prevent being stunned when it begins by the ice-cold fuel running through it, the engine must be cryogenically cold. So we need a little extra time to figure that out. was,” Sarafin said.

Sarafin said the team also noticed a problem with a vent valve in the inner tank, and the combination of the issues led the team to believe they needed more time.

If substantial corrections are needed, the team may need more time to deal with it and return the rocket stack to Kennedy Space Center’s Vehicle Assembly Building, a process that takes 3 1/2 days.

Today Artemis I launch has been scrubbed after an engine failure
Today Artemis I launch has been scrubbed after an engine failure

The launch team still needs to fix the engine problem and will keep the rocket in its current configuration to gather data and assess what needs to be done. Officials from NASA claim that the Orion spacecraft and the Space Launch System rocket are both stable.

Before the scrub, the launch team worked on a debugging strategy for one of the rocket’s four engines, which caused the countdown to be extended to an unexpected hold.

This is because the launch team discovered a problem with engine bleed in engine #3. Attempts to reset it failed.

During engine bleeding, hydrogen is cycled through the engine to keep it in launch condition. Three of the four engines are performing as expected, but engine number three is experiencing a problem.

Additionally, there were numerous weather-related concerns throughout the lunch period. We didn’t have any weather concerns at the beginning of the window because of the rain. “The launch pad area,” Sarafin said.

Today Artemis I launch has been scrubbed after an engine failure
Today Artemis I launch has been scrubbed after an engine failure

Previously, favorable weather conditions were predicted to be 80% favorable for the opening of the window, which opened at 8:33 a.m. ET, but as it got closer, the weather changed.

In comments made after the delay, Vice President Kamala Harris, who traveled to the Kennedy Space Center in Florida to watch the launch, emphasized the United States’ commitment to NASA’s Artemis program.

Although our hopes for the Artemis I launch today, Harris remarked via Twitter that this endeavor “gave critical data as we tested the most powerful rocket in history.” “We remain firmly committed to the Artemis programmed, and we will visit the Moon again.”

The 322-foot-tall (98 m) stack sits on Launch Pad 39B at NASA’s Kennedy Space Center in Florida.

Shortly after the scrub’s release, NASA Administrator Bill Nelson spoke about it and emphasized that Artemis I was a test flight. β€œWe don’t launch until it’s right,” Nelson said. “They have a problem with bleeding an engine with gases going to the engine, that’s just an example of how it’s a very complex machine, a very complex system, and all these things have to work. You Don’t light the candle. Until it’s ready to go.”

This is something Nelson has personal experience with. He took part in the Space Shuttle’s 24th mission as an astronaut. It was cleared four times on the pad, and the fifth attempt resulted in a flawless mission.

It would not have been a good day if we had released one of these scrubs, he said.

Several problems arose after the rocket was refueled after midnight.

The potential for lightning, along with the thunderstorm, prevented the team from starting the refueling process for about an hour.

At 1:13 a.m. ET, the hold was lifted and the tanking process began, loading the rocket’s core stage with supercooled liquid oxygen and liquid hydrogen.

The team stopped filling the tank with liquid hydrogen twice due to initial leaks as well as pressure build-up but tanking resumed for the core stage and the upper stage, or transitional cryogenic propulsion stage.

A frost line was also found on the inner stage flange by the researchers. Engineers initially believed the frost might be a sign of a tank crack, but it proved to be a crack in the outer foam. The team shared that the problem was solved because the foam crack did not indicate a leak.

Engineers also tested an 11-minute delay in communications between the Orion spacecraft and ground systems. This problem can affect the start of the terminal countdown or countdown that starts with 10 minutes left on the clock before liftoff. The team was able to work through the issue, which was the result of a simple misconfiguration.

In addition to Harris’ tour, appearances by celebrities such as Jack Black, Chris Evans, and Keke Palmer, and performances of Josh Groban and Herbie Hancock’s “The Star-Spangled Banner” and the Philadelphia Orchestra’s “America the Beautiful” and cellist Yu-Yu Ma were planned.

Mission Overview

When Artemis I launches, Orion’s journey will last 42 days as it travels to the moon, orbits it, and returns to Earthβ€”a total of 1.3 million miles (2.1 million km). . The capsule will plunge into the Pacific Ocean off the coast of San Diego upon its return to Earth.

Although the passenger list doesn’t include any humans, it does include passengers: three plants and a plush Snoopy toy will be aboard the Orion.

The crew of the Artemis may appear a little odd, but each has a purpose. Snoopy will act as a zero-gravity indicator – meaning he will start floating inside the capsule when it reaches the space atmosphere.

Commander Monken Campos, Helga, and Zohar will conduct deep space radiation measurements that will allow future crews to test and test a new suit and shielding technology. A biology experiment carrying seeds, algae, fungi, and yeast is tucked inside Orion to test how life reacts to the radiation.

Cameras inside and outside Orion will share images and video throughout the mission, including live views of the Callisto experiment, which will capture a stream of Commander Monquin Campos sitting in the commander’s seat. You can ask Amazon Alexa every day for the location of the mission if your device is Alexa-enabled.

Expect to see views from Earthrise, like those first shared during Apollo 8, but with much better cameras and technology.

Science experiments and technology demonstrations are aboard a rocket. The 10 small satellites, called CubeSats, will go their separate ways to gather information about the Moon and the deep space environment.

The Artemis program’s inaugural mission will begin a space exploration phase that will land various astronaut crews in previously unexplored regions of the Moon and eventually lead to crewed missions to Mars.

Artemis II and Artemis III, slated for 2024 and 2025 respectively, will test the rocket and spacecraft for the first time before taking astronauts to the moon and boosting their speed.

Correction: An earlier version of this story had an incorrect height of the Artemis 1 stack on the launchpad.

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