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Triple star system involving a pulsar suggests Einstein was right. Kevin Gill/Flickr, CC BY-ND

Free-falling dead stars show that a cornerstone of physics holds up

Free-falling dead stars show that a cornerstone of physics holds up Triple star system involving a pulsar suggests Einstein was right. Kevin Gill/Flickr, CC BY-ND James Geach, University of Hertfordshire It may not be intuitive, but drop a hammer and a feather and – in the absence of air resistance…

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