JOB VACANCY RESTORAN PITADOS 2 POSISI GAJI MENARIK

“The launch abort system is designed to pull the crew capsule away in case there is an emergency on either the launch pad or during the ascent phase,” said Orion’s deputy program manager, to reporters during a briefing before the first launch attempt. “We’re talking very quick, really trying to outrun an SLS that might be having an issue during launch.”

 a former NASA astronaut and military pilot who flew space shuttle missions and commanded told Scientific American that having an abort system is a relief for everyone aboard a rocket—and for their families back on the ground.

“Getting on a rocket knowing that if the day turns horribly bad you still have a great chance of getting back to your family—it’s amazing. It’s something we didn’t have in shuttle,” says Hurley, now Northrop Grumman’s senior director of business development. “It’s an incredibly great piece of mind to have.”

Because no humans are onboard for the Artemis I mission, Thankfully, the SLS has so far done its job. After liftoff, the rocket survived its period of maximum dynamic pressure in the atmosphere, throttled up its main engines and delivered Orion to Earth orbit. Then the rocket’s core stage detached and began an ignominious descent to the bottom of the Pacific Ocean, leaving the crew capsule and the upper stage, called (ICPS), to continue their journey.

The mission’s next big challenge began about an hour and a half after launch. To reach the moon, the ICPS needed to precisely execute a long engine burn called translunar injection, or TLI. For 18 minutes, it fired its engines, accelerating the Orion spacecraft from 17,500 miles an hour to 22,000 miles an hour—the speed required to shrug off Earth’s gravity and instead cling to the moon.

If the burn had gone awry, Orion could have missed the moon entirely. On this test flight, NASA officials were so keen to perform the crucial TLI that they were determined to go for it unless the maneuver was guaranteed to result in a loss of the spacecraft. “We would be ‘go’ on this flight for conditions that we would normally be ‘no-go’ for on a crewed flight, in the interest of crew safety,” said  Artemis I’s mission manager at NASA, during a late summer prelaunch briefing. “That is something that is unique to this uncrewed flight test, and we are going to press ahead and press uphill unless we’re almost for sure we’re going to lose” the vehicle.

Post-TLI, Orion detached from the ICPS and sailed on to the moon in solitude. For the rest of its mission, the spacecraft will be flying under its own power using onboard navigation and propulsion systems.

“There are certain cases that could come up that could cause us to come home early,” said NASA’s associate administrator to reporters before the first launch attempt. “And that’s okay. We have contingencies in place.” But, he added, “the main objective that we really want to get out of this test flight, of course, is stressing that heat shield—getting a test of that new Orion heat shield at lunar reentry velocities.”

If Orion returns safely to Earth, it will create new possibilities for humankind’s off-world future—ones that necessarily involve the bulky, expensive Artemis hardware. “SLS and Orion working perfectly on the test flight will make it unstoppable for the next flight,” Garver says. “We absolutely march forward.”