NASA’s Orion capsule fired its main engine for three and a half minutes today during a close approach to the moon, executing a maneuver that’s meant to put the spacecraft on course for a splashdown in six days.
Orion came within 80 miles to the lunar surface during what’s expected to be the final large maneuver of its 25.5-day Artemis 1 mission. Today’s maneuver had to succeed in order to bring the uncrewed spacecraft back to Earth intact. The only other firings on the schedule are aimed at making tweaks in the trajectory.
Artemis 1, which began with the first-ever liftoff of NASA’s giant Space Launch rocket on the night of Nov. 15, is a test flight designed to blaze a trail for future crewed missions to the moon. The SLS sent Orion on a looping course that took advantage of the moon’s gravitational pull and ranged as far as 40,000 miles beyond the moon.
Although there are no astronauts aboard Orion this time, the seats are filled by three mannequins that have been hooked up with sensors to monitor radiation exposure, temperature levels and other factors that might affect future fliers.
There’s also an experimental, Alexa-style AI assistant code-named Callisto, which was built for NASA by Amazon in collaboration with Cisco and Lockheed Martin. Ground controllers and VIPs, including “Hidden Figures” actress Taraji P. Henson, have been using Callisto to check in with the capsule during the mission.
Debbie Korth, NASA’s Orion deputy program manager, said Callisto’s users found the system to be “very interactive, very engaging in terms of being able to talk to the spacecraft, turn lights on and off, write notes, play music, ask questions.”