The Great Wall (Antoniadi crater) Size:36" x 36" (91 cm x 91 cm) a series of pillars of

a series of pillars of gas and dust

while colleague Ronald Evans orbited overhead

Hubble has only previously conducted in-depth research on the cluster's central core

NASA's HiRISE spacecraft

but the flows had not come far enough down the mountain to affect any towns or villages

The Great Wall (Antoniadi crater) Size:36" x 36" (91 cm x 91 cm) a series of pillars ofThe Lunar Reconnaissance Orbiter Camera, or LROC, is a system of three cameras mounted on the Lunar Reconnaissance Orbiter (LRO) that capture high resolution black and white images like this one and moderate resolution multi spectral images of the lunar surface. The Moon is a rugged place, in fact some mountains rise more 8 km (5 miles) above the local terrain! A great way to visualize these amazing heights is to rotate the LRO spacecraft to the side