A four-ton upper stage of a SpaceX rocket is believed to have hit the moon at 5,400 mph. The SpaceX rocket launched a pair of lunar landers last year, but the company’s scientists say a combination of solar activity and gravity put it on a collision course with the moon. Geoff Bennett discussed larger concerns about lunar litter with science correspondent Miles O’Brien.

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Geoff Bennett

Geoff Bennett is co-anchor and co-managing editor of PBS News Hour, where he brings incisive reporting and sharp analysis to the political and cultural forces shaping American life.

@GeoffRBennett