I am currently downloading MODIS burned area fire products to use for a work project. One of these products is a GeoTIFF which indicates the day (Julian date) of the year when an area experienced fire.
These GeoTIFF files are available for download by themselves with an extension of .tif and without any sidecar files (e.g. .tfw, etc.). When I open the .tif file in ArcGIS Pro, it is correctly georeferenced.
How is this possible without a sidecar file which contains georeferencing information?
I merely ask this as to me, conceptually, a .tif file is analogous to any other simple image file (e.g. .jpg) and I am curious how it can be natively georeferenced.