How NASA made 'moon joy' a space-age catchphrase

"Fetch" is never going to happen. But "moon joy" just might.

NASA began using the phrase "moon joy" all over its social media accounts as the Artemis II crew approached the moon this week. Now the agency has gone all in with a definition on the official NASA account on X, along with the ideal photo — its lunar adventurers looking adorably like the first fourple in space — leading into a video of moon joy moments.

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"The feeling of intense happiness and excitement that only comes from a mission to the moon" is how NASA defines moon joy (which sounds to us like it should be one word, but we'll wait for an official ruling from the AP Stylebook).

The phrase has been used several times throughout the Artemis II mission. The first use NASA posted was on Sunday, April 5: a clip of the mission control communicator calmly replying to a litany of excited identification of lunar locations from astronaut Reid Wiseman aboard Orion.

"Copy," mission control says with a chuckle. "Moon joy."

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One commenter on X called the phrase "the most perfectly understated response to astronauts losing their minds over seeing the moon up close for the first time." (Which calls to mind this classic 1969 moon landing story from the Onion — featuring a mission control transcript that seems closer to how the Apollo team would have expressed its moon joy if they hadn't been so professionally understated.)

NASA knew a good meme when it saw one. When the astronauts were woken up on Monday, mission control told them, "Our room is buzzing with moon joy." When the Artemis II astronauts viewed a solar eclipse that same day, it also qualified as moon joy — because the eclipse was one only they could see.

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Moon joy is infectious, it turns out — even reaching the astronauts aboard the International Space Station, according to a live NASA broadcast of a ship-to-ship call between Orion and the ISS.

"We can tell that you guys are definitely experiencing moon joy," Jessica Meir, commander of the ISS Crew-12 mission, told the Artemis II crew, "and I feel like even we are experiencing moon joy right now."

The ISS's moon joy manifested, according to Meir, in a particularly nerdy jape.

At the moment Orion set the new record for the farthest distance humans have ever traveled from Earth on Monday, her crew went to the far end of the station to claim that they were the farthest humans away from them at that moment — presumably since the ISS happened to be on the opposite side of the Earth at the time.

Even Rise, the official Artemis II mission mascot, got in on the moon joy meme on Wednesday, turning in the perfect made-for-Hollywood cute character catchphrase.

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Of course, NASA couldn't make moon joy happen all on its own. Luckily, back on Earth, moon joy is already a thing — because ironically, and unlike fetch in Mean Girls, it's not happening in a vacuum.

We noted the unusually unified, unabashedly earnest reactions to last week's Artemis II launch. That sense of wonder and delight has only grown, and #moonjoy has become the positive hashtag for an otherwise uniformly terrible year.

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How long moon joy lasts, and whether it stays with us for NASA's planned moon landing in 2028, is anyone's guess. But this week at least, it was a real and global thing — and that is, in itself, pretty fetch.

Elisha Sauers contributed to this report.