=== ACTUAL SEARCH SIGNAL ===
pexels.com: 72
pixabay.com: 60
commons.wikimedia.org: 56
wikimedia.org: 56
mixkit.co: 23
archive.org: 21
nasa.gov: 20
eso.org: 14
esa.int: 3
videvo.net: 1

=== SELECTED/USED ASSET SIGNAL ===
pexels.com: 165
wikimedia.org: 132
commons.wikimedia.org: 131
pixabay.com: 91
mixkit.co: 52
eso.org: 34
nasa.gov: 19
archive.org: 18
esa.int: 12
videvo.net: 2