NASA assessed 1-in-276 odds for lack of crew on the primary flight of astronauts aboard SpaceX’s Crew Dragon in 2020. For Boeing’s Starliner in 2024, the chance was 1 in 295. You wouldn’t be mistaken to query these numbers given the confirmed efficiency of Dragon and Starliner.
This chart from NASA’s Workplace of Security and Mission Assurance describes the company’s course of for conducting probabilistic danger assessments.
Credit score:
NASA
This chart from NASA’s Workplace of Security and Mission Assurance describes the company’s course of for conducting probabilistic danger assessments.
Credit score:
NASA
So, what do the Artemis II astronauts make of all this?
The mission’s commander, Reid Wiseman, stated the crew members have been attempting to arrange their households “actually and brazenly” for the hazards of a circumlunar flight.
“I went on a stroll with my youngsters, and I informed them, ‘Right here’s the place the need is, right here’s the place the belief paperwork are, and if something occurs to me, right here’s what’s going to occur to you,’” Wiseman stated. “That is part of this life. I really want extra individuals in on a regular basis life talked to their households that manner since you by no means know what the subsequent day goes to deliver.”
Any sailor is aware of you’ll be able to’t keep within the harbor perpetually. Take a look at pilots and astronauts take calculated dangers for a residing.
“If you see numbers like Mach 39 at entry, once you see numbers like 38,000 miles, 250,000 miles, and 5 or 6 million kilos on the pad, these are simply insane numbers,” Wiseman stated. “These numbers, you don’t even comprehend. There’s danger in that. We don’t know what we don’t know proper now, so we’ll go be taught all that [on the mission].
Regardless of the unknowns, Wiseman is prepared: “For me, I really really feel fully one hundred pc purchased in. Once I get into Orion, it’s like climbing into my mattress, and I’ll really feel heat and tucked in.”
The formal danger matrix for Artemis II is just like that of Artemis I, with MMOD once more on the high of the listing. Matt Ramsey, NASA’s Artemis II mission supervisor, informed Ars in January that the Orion spacecraft’s environmental management and life assist system, which didn’t fly with its full functionality on Artemis I, is the second-highest danger for Artemis II. “These two are my greatest worries,” stated Ramsey, who has been with NASA since 2002.
