Images of a “tentacled mystery object” have been posted on X, with reactions online expressing panic, ranging from declaring that the object looks like something from the 1979 film Alien, begging astronauts to “kill it with fire,” and others speculating freely about extraterrestrial life hatching in orbit.
The story came at an interesting time, coinciding with a significant moment for human spaceflight which might have increased the virality of the post. NASA’s Artemis II mission launched from Kennedy Space Center on 1 April 2026, carrying astronauts Reid Wiseman, Victor Glover, Christina Koch, and Canadian Space Agency astronaut Jeremy Hansen on the first crewed test flight under the Artemis programme. During the mission, the crew broke the all-time record for the farthest distance any human being has ever travelled from Earth, reaching 252,756 miles out, and came within 4,067 miles of the lunar surface. After nearly ten days in deep space, they splashed down off the coast of San Diego on 10 April 2026 — the first time humans had travelled to the vicinity of the Moon since Apollo 17 in 1972.
When we conducted some research on the claim however, we found that the “mystery tentacled object” was not a space-altered organism or a form of extra-terrestrial life but rather something much more mundane. NASA astronaut Don Pettit posted on X to explain that the object was simply a potato he had been growing aboard the ISS as part of a personal space garden project during Expedition 72, which he named “Spudnik-1.” He had grown it in his own off-duty time, keeping it in an improvised grow-light terrarium with a piece of Velcro attached to stop it floating away.
The “tentacles” that had everyone convinced they were watching an alien hatch were, in fact, roots. The reason those roots looked so dramatic is actually worth understanding: in microgravity, plant roots have no gravitational signal telling them which direction is down, so they simply grow outward in every direction at once. Add the fact that the potato was purple and you get something that genuinely does look alarming if you are not paying attention.
It is also worth being clear that Pettit growing a potato on the ISS is not remotely surprising or unplanned. NASA has for years maintained specialised space gardens aboard the station, using LED lighting and pillow-like growing pods, and astronauts have successfully cultivated lettuce, kale, and even flowers in orbit.
With the evidence gathered then, the claim that a “tentacled mystery object” has been found on the International Space Station is false. The object is in fact a potato that was cultivated by NASA astronaut Don Pettit and documented on his X account.
