NASA astronauts joke around with an optical illusion on the ISS | Space photo of the day for April 15, 2026

Even in space, we love to make our friends laugh.

Williams played on an optical illusion, reaching his hand out and appearing to “hold” the Cygnus XL from the ISS’ cupola alongside Hathaway as the pair smiled and laugh.

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What is it?

On April 11, NASA’s Northrop Grumman Commercial Resupply Services 24 mission launched aboard a SpaceX Falcon 9 rocket. The mission sent over 11,000 pounds of cargo, including scientific investigations, to the ISS aboard a Cygnus XL spacecraft, identifiable by its two, round solar arrays.

On April 13, Williams and Hathaway captured the spacecraft using the Canadarm2 robotic arm. Once captured, they positioned it for installation on the ISS’ Earth-facing port.

As you can see in the image, while the Cygnus was visible outside of the cupola, the pair had some fun pretending to “hold” the spacecraft between their fingers with a classic optical illusion.

Why is it incredible?

Space is hard. With the Cygnus XL’s arrival, Williams and Hathaway accomplished a challenging feat, capturing and installing a spacecraft carrying thousands of pounds of cargo to another orbiting spacecraft.

But what’s amazing is that, despite the constant and plentiful challenges of outer space, astronauts still manage to find the joy. And their fellow astronauts shared in the joy with them.

“Congratulations to @Astro_ChrisW and @astro_hathaway on their first cargo vehicle capture using the @csa_asc Canadarm on the @Space_Station! Mission accomplished today. Hatch opening and cargo ops, including many scientific experiments (and even some fresh food!), commence early tomorrow. Well done, @northropgrumman, @NASA, @SpaceX teams!” fellow NASA astronaut Jessica Meir shared on X on April 13 X.

Chelsea Gohd served as a Senior Writer for Space.com from 2018 to 2022 before returning in 2026, covering everything from climate change to planetary science and human spaceflight in both articles and on-camera in videos. With a M.S. in Biology, Chelsea has written and worked for institutions including NASA JPL, the American Museum of Natural History, Scientific American, Discover Magazine Blog, Astronomy Magazine, and Live Science. When not writing, editing or filming something space-y, Gohd is writing music and performing as Foxanne, even launching a song to space in 2021 with Inspiration4. You can follow her online @chelsea.gohd and @foxanne.music