Mysterious doorway found on Mars isn't an alien's house, say killjoy geologists

pcgamer.com:

A mysterious doorway on Mars photographed by NASA's Curiosity rover last week is nothing to get excited about, say a bunch of expert geologists, instantly crushing our dreams of finding proof of alien life. The doorway is not the entrance to a cursed Martian tomb, it's not the gateway to a dungeon filled with terrifying monsters, and it's not the site of an ancient generator that will let Douglas Quaid give Mars a breathable atmosphere.

It doesn't even lead to a tiny cave where an old man offers you a wooden sword and tells you it's dangerous to go alone. It's just, like… a shallow hole in a rock wall. Bummer.

The doorway was probably formed by «natural erosion,» geologist Neil Hodson told LiveScience, while planetary geologist Nicholas Mangold said there was «nothing artificial» about the doorway. Fractures in the rock and thermal stress may have caused a hunk of stone to simply fall away, leaving a gap that just looks like a doorway.

And it does really look a heck of a lot like a constructed doorway, the sort of thing I'd make in a game like Minecraft while setting up a temporary base and not bothering to add windows or even an actual, closeable door. The only thing missing are the stacks of gravel, sand, and saplings bobbing just above the ground where I chucked them to make room in my inventory for more ore.

While you'd hope NASA would continue to investigate the doorway, at least by making the rover drive through it to see what's in there—it actually can't. First of all, the doorway is smaller than it looks in the pictures, standing less than a meter tall (the Curiosity rover is about 2.2 meters tall). Second, if you zoom in on the images you can see there's actually no interior. It's a shallow alcove, not a doorway