How to enhance a composite 3-band satellite image with a panchromatic band, by pan-sharpening in ArcGIS.

How to enhance a composite 3-band satellite image with a panchromatic band, by pan-sharpening in ArcGIS.
How to create a natural 'true colour' image from single Landsat-8 satellite image bands.
How do we answer questions when the data exists but there's no direct access? A real-world solution to a fuel shortage problem encapsulates the answer.
Where can you find free high resolution satellite imagery for your project, which is the best imagery and what are the issues with it?
Georeferencing a map of the pyramid complex of Djedefre, wrestling with inaccuracies, residuals and RMSE.
What makes georeferencing historic maps difficult and how does the process work? Here I georeference a problematic map of Abu Rawash, pyramid and cemeteries, Egypt.
What happens when satellite imagery contains errors? Warping of the satellite imagery has left us with kinky temples at Deir el-Bahri.
A new platform can make you a 'Space Archaeologist', but will it help looters too?