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ditty_333 karma

Hello NASA and Orbital ATK! I'm a Mechanical Engineering student currently working at a previous NASA prime contractor called Neptec. I have been following the SLS and Orion progress extensively because there isn't anything much cooler than BLEO space flight ! My question is, How many variations of the SLS are currently under development for different payloads/travel distance and how confident are you that it will make the first launch date, aka no non-weather related delays?

Thank you and you guys are awesome!!