Artemis 2 crew could be the first to ever lay eyes on these lunar areas

On the moon's extreme western rim, straddling the border with the lunar far side, a landmark nearly 600 miles wide almost completely escapes Earth's view. 

A colossal asteroid-like invader once ripped through the lunar crust, flinging out rings of mountains and scooping out a giant bowl, later flooded and backfilled with dark lava. The bullseye still stands today, scars memorializing that long-ago catastrophe. 

From space orbiter cameras, Mare Orientale, which means "Eastern Sea" in Latin...