English: NASA is looking into whether mixed reality technology could help with repairs and upgrades on the cutting-edge Cold Atom Lab aboard the space station. NASA’s Cold Atom Lab is a first-of-its-kind physics laboratory operating in Earth orbit. About the size of a mini-fridge, it hosts multiple experiments that explore the fundamental nature of atoms by cooling them down to nearly absolute zero (the coldest temperature matter can reach). The ultracold atoms provide a window into the quantum realm, where matter exhibits strange behaviors that underpin many modern technologies. In 2020, during her extended stay aboard the space station, NASA astronaut Christina Koch worked with Earth-based mission team members to install upgraded hardware in Cold Atom Lab. Along with adding new capabilities to the novel facility, the effort proved something else: that such maintenance could be performed without the need to lug the laboratory back to Earth. Plans are underway for a series of additional upgrades to Cold Atom Lab in the coming years, so the mission team is investigating ways to make these activities more efficient. Earlier this summer, they successfully tested a new tool that could help with that goal: a Microsoft HoloLens, a mixed reality (also known as augmented reality, or AR) headset. On July 15, astronaut Megan McArthur used the AR headset while she replaced a piece of hardware inside Cold Atom Lab, enabling the facility to produce ultracold potassium atoms in addition to the rubidium atoms that have been used since the facility started operating in 2018.