History's Layers in Hebes Chasma Size:18" x 24" It is situated 18 km

It is situated 18 km east of Schwerin

as a color lithograph at 53

This color silkscreen poster was created to protect the Trumpeter Swan

Arp 273 lies in the constellation Andromeda and is roughly 300 million light-years away from Earth

History's Layers in Hebes Chasma Size:18" x 24" It is situated 18 kmOn the northern side of Valles Marineris on Mars lies a closed geological depression named Hebes Chasma. In outline, Hebes looks like a micro version of the gigantic valley but it extends only about 320 kilometers (200 miles) long and stretches 130 km (80 miles) wide at its widest. Still, Hebes is about 5 to 6 km (16,000 to 20,000 feet) deep in the region seen here and as with most parts of the Valles Marineris system, landslides scar its walls. Yet