The Solar and Heliospheric Observatory (SOHO) has been taking pictures of the Sun since 1996, but that’s no excuse for NASA getting a little lax and missing what could be its most significant photo ever. On October 25th, a picture was sent back of what appears to be a UFO the size of Earth either entering or leaving the surface of the Sun but definitely not burning up.

This isn’t the first UFO seen orbiting the Sun but it’s certainly one of the biggest. Most news stories have been referring to a report that Russian scientists claimed to have seen an Earth-sized UFO enter orbit around the Sun five years ago. As recently as 2012, another photo taken by SOHO showed what looked like a ship with a boom arm, possibly refueling. Experts attributed that photo’s anomaly to cosmic rays causing a spaceship-shaped blip on the camera lens. Earth-based cameras don’t have this problem because they’re protected by the planet’s magnetosphere.

Is that what caused this fin-shaped UFO? NASA hasn’t said anything so far. It’s hard to tell if the UFO is entering or leaving the surface of the Sun. In either case, how come it’s not vaporizing? To build a ship the size of Earth would obviously need a metal far exceeding the strength of anything we’re familiar with, so for it to be resistant to solar surface temperatures not much of a stretch. If it’s going into the Sun, does it belong to aliens living there, as astronomer William Herschel and others believed? Or is it a ship from another galaxy visiting or refueling?

Whatever it is, I hope it wasn’t developed by a species similar to humans. This would mean that, even though the ship is Earth-sized, the poor travelers inside are crammed in tiny seats with no legroom.