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Artist impression of Triple System Courtesy Bill Saxton/NRAO

The paper on the MSP triple system J0337+1715 is finally out! It is a bright millisecond pulsar in a 1.6-day orbit with a hot white dwarf star, both of which are being orbited every 327 days by a much cooler and more massive white dwarf. It should end up being the best-yet test of the Strong Equivalence Principle (and therefore a qualitatively new test of general relativity). There is an arXiv version if you prefer and here is some press release stuff.