So how can we make a planet sized synthetic aperture optical telescope? I'm wondering if there is a way to do it with holograms (since they preserve phase info

So how can we make a planet sized synthetic aperture optical telescope? I'm wondering if there is a way to do it with holograms (since they preserve phase information): take holograms of the object from opposite sides of the earth and then combine them offline. There are some papers in this direction: https://hal.archives-ouvertes.fr/hal-00654840/document https://hal.archives-ouvertes.fr/hal-00654840/document (spy satellites probably already do it...)