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are all meteor impact spaces every single one of them. But they were huge collisions probably three, four billion years ago. Huge. Those things are 500 miles across. Dave and
Jim had to fly over a 15,000 foot mountain to get to our landing site at Hadley Rille.
That 15,000 foot mountain is the outer wave of that meteor impact basin on Mare Imbrium 250 miles away from the center of impact. That's how dramatic and how huge these things
Listen to native speakers pronounce “rille” in real conversational contexts with synchronized timestamps and subtitles.
One of certain narrow, crooked valleys seen, by aid of the telescope, on the surface of the moon.