Lunar

Orion’s Windows to the World

Earth, as seen through the Orion window during Artemis II. Image: NASA

For astronauts who put in decades of work and training, getting to see space with their own eyes is a big part of the payoff.

Artemis II astronauts will take in the view courtesy of McDanel Advanced Materials, which is the company expecting to make the windows for at least the first five Artemis missions. 

“Imagine you work your whole life to become an astronaut, and you have to look through a computer screen to see outside,” said Ramsey Benhusen, a senior program manager for aerospace and defense solutions at McDanel. “Of course they want to look through a window to see what it looks like with their own eyes. It’s a privilege only they will have.”

Specs: McDanel, which acquired Orion window manufacturer Rayotek about two years ago, makes all of the window panes for Orion—including on the docking hatch, the forward-facing windows, on the side hatch, and on the launch abort system. 

Each window is multiple layers thick, including outer panes to absorb micrometeoroid impacts and inner panes to inhibit bacteria and mold growth. 

Building for space: These aren’t your everyday house windows. Orion’s windows are designed to withstand the extremes of temperature, radiation and microgravity in space while meeting strict mass requirements.

Making the windows space-ready without constant maintenance is a mindset shift, Benhusen said. “When we build things for oil and gas, we deal with some extreme pressures…[but for space], we can’t bring them back down, fix them and send them back out.”

What’s next: Benhusen said engineers are looking at ways to reduce the weight of the windows while maintaining safety for Artemis III and beyond—a change that will have implications for broader deep space travel as well. 

“If they want to get to Mars cheaper and safely, we have to address weight,” he said.