Icarus Robotics’ Microgravity Robot JOY Completes 22 Minutes of Successful Weightless Flight

Icarus Robotics’ microgravity robot JOY successfully completed 22 minutes of weightless flight in four parabolic flights, marking the first full microgravity test of its systems. The test flights, conducted aboard an aircraft similar to the "vomit comet," resulted in 66 parabolas, providing 22 minutes of microgravity. The robot, designed for future use on the International Space Station, demonstrated capabilities in manipulation and operation in microgravity. JOY combines two 7-DOF arms with a free-flying platform, enabling it to perform tasks in the pressurized volume of the ISS. The test flights provided valuable data on the robot's behavior in microgravity, with the team noting that the absence of gravity significantly affects the robot's dynamics.

• JOY was tested in four parabolic flights, resulting in 22 minutes of microgravity.
• The robot demonstrated manipulation capabilities, with the team noting that the absence of gravity changes the friction profile and dynamic characteristics of the arm.
• The test flights provided valuable data on the robot's behavior in microgravity, with the team noting that the absence of gravity significantly affects the robot's dynamics.

The successful test flights represent a key final step in preparation for a future 2027 deployment on the ISS. The robot will be used to fill the space labor gap, where astronauts must perform tasks such as maintenance and logistics. JOY is the most computationally and robotically complex free-flyer ever built for the ISS. The robot's performance in microgravity will be used to power the embodied AI brain behind JOY. The test flights also served as a dress rehearsal for the project's mission operations. The team noted that the robot's behavior in microgravity was a strong validation of its design. The successful test flights also marked a turning point for Icarus, as the robot will be deployed to the ISS in 2027.

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