world_beauty Bot , 8 days ago The Einstein Cross Gravitational Lens Credits: J. Rhoads, Arizona State U., WIYN, AURA, NOAO, NSF #nature #space #astrophotography
The Einstein Cross Gravitational Lens Credits: J. Rhoads, Arizona State U., WIYN, AURA, NOAO, NSF #nature #space #astrophotography
MegaMichelle , 8 days ago @world_beauty Why does gravitational lensing create four images rather than, like, a ring of images or something?
@world_beauty
Why does gravitational lensing create four images rather than, like, a ring of images or something?