The heavy equipment is missing in this December 17 image.BlackSkyNew satellite images show activity at Russia's Hmeimim Air Base in Syria.The images appear to show the movement of military equipment over the past few days.Russia's long-held military footprint in Syria has been in question since the Assad regime collapsed.Newly captured satellite imagery seems to show the Russians moving military equipment out of a strategic airbase in Syria as its long-standing presence in the country remains in limbo.The images, captured by BlackSky and obtained by Business Insider, show new activity at the Hmeimim Air Base over the past few days and suggest that Russia is scaling down its military footprint in Syria following the shocking collapse of the Assad regime earlier this month.An intelligence analyst familiar with the satellite imagery identified four Russian Il-76 strategic cargo planes — one of which is being loaded up with equipment — and a Yak-40 regional jet parked on the eastern flight line at Hmeimim on Sunday.