Disk-shaped alien craft at the bottom of a crater on Pluto?

A high-resolution image of Pluto taken in 2015 by New Horizons Long-Range Reconnaissance Imager (LORRI) in “ride-along” mode with the LEISA spectrometer shows a region called 'the dark, forbidding region informally known as Cthulhu Regio, and the mysterious, possibly cryovolcanic edifice Wright Mons.'

Among the many notable details, is a saucer-shaped object with on top a cylindrical tube located at the bottom of a crater. 

It doesn't appear to have formed naturally, suggesting that the circular object could be the top of an extraterrestrial base built inside the crater or... maybe it's a parked disk-shaped alien craft?

Link Image:

https://www.nasa.gov/feature/new-findings-from-nasa-s-new-horizons-shape-understanding-of-pluto-and-its-moons