Astronomers have attempted to explain the non-gravitational acceleration of comet 3I/ATLAS, our third confirmed interstellar visitor, in a way that removes the need for "non-natural hypotheses for ...

‘Oumuamua (1I/2017 U1) is the first object of interstellar origin observed in the Solar system. Recently, Micheli et al. (2018) reported that ‘Oumuamua showed deviations from a Keplerian orbit at a ...

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"The idea did not end up in the garbage bin because we realized that, when applied to the universe as a whole, it could reproduce the observed acceleration of cosmic expansion without having to posit ...