Alexander Novgorodov was browsing some NASA photographs of Mars, taken by the Mars Reconnaissance Orbiter spacecraft, when he ran across something peculiar:
There is a strange door-like structure at the base of the mountain formation from a NASA image of Mars that is causing a stir. The first person to notice it wasn’t a NASA scientist, however, but rather a Russian reader of the portal R&D.Cnews, Alexander Novgorodov. Taking a closer look at an image taken by the spacecraft Mars Reconnaissance Orbiter, he noticed an unusual morphology, which looks strikingly like a manmade doorway.
Of course, NASA scientists quickly covered it up, saying that the doorway is simply a boring old weather erosion.
Previously on Neatorama: Martian Cave
I don't think that term means what you think it means.
On the other, my geek side is thrilled at the discovery of the entrance to one of the underground spaceports of Mars.
RTFA - the WHOLE teardrop shaped formation is slightly less then 200 METERS long.
monolith!
monolith!!
or, y'know, a dead patch of pixels in the image. rectilinear, even.