Science news this week: An enigmatic human relative, dark matter discovery and mysterious lights in the sky during nuclear weapons tests - Live Science

1. Science news this week: An enigmatic human relative, dark matter discovery and mysterious lights in the sky during nuclear weapons tests  Live Science
2. Early hominin Australopithecus afarensis may not be our human ancestor after all  Natural History Museum
3. Mystery foot suggests a second early human relative lived alongside Lucy  NBC News
4. New finds shed light on diet and locomotion in Australopithecus deyiremeda  Nature
5. Two Australopithecus Species Co-Existed in Ethiopia 3.4 Million Years Ago  Sci.News

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