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INTERSTELLAR OBJECTS

The ‘Oumuamua controversy

That the interstellar object 1I/2017 U1 (‘Oumuamua) could be an extraterrestrial artefact is an unorthodox hypothesis. From a philosophical perspective, however, the structure of the underlying argument for the hypothesis is flawed.

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References

  1. 1.

    Bialy, S. & Loeb, A. Astrophys. J. Lett. 868, L1 (2018).

    ADS  Article  Google Scholar 

  2. 2.

    Loeb, A. Extraterrestrial: The First Sign of Intelligent Life Beyond Earth (John Murray, 2021).

  3. 3.

    Micheli, M. et al. Nature 559, 223–226 (2018).

    ADS  Article  Google Scholar 

  4. 4.

    Do, A., Tucker, M. A. & Tonry, J. Astrophys. J. Lett. 855, L10 (2018).

    ADS  Article  Google Scholar 

  5. 5.

    Mashchenko, S. Mon. Not. R. Astron. Soc. 489, 3003–3021 (2019).

    ADS  Article  Google Scholar 

  6. 6.

    Stanford, P. K. Exceeding Our Grasp: Science, History and the Problem of Unconceived Alternatives (Oxford Univ. Press, 2006).

  7. 7.

    The ‘Oumuamua ISSI Team Nat. Astron. 3, 594–602 (2019).

  8. 8.

    Seligman, D., Laughlin, G. & Batygin, K. Astrophys. J. Lett. 876, L26 (2019).

    ADS  Article  Google Scholar 

  9. 9.

    Sandberg, A., Drexler, E. & Ord, T. Preprint at https://arxiv.org/abs/1806.02404 (2018).

  10. 10.

    Lingam, M. & Loeb, A. Astrobiology 19, 28–39 (2019).

    ADS  Article  Google Scholar 

Download references

Acknowledgements

I thank A. Loeb, P. Vickers, T. Ord and S. McMahon for helpful comments.

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Correspondence to Christopher Cowie.

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Cowie, C. The ‘Oumuamua controversy. Nat Astron 5, 526–527 (2021). https://doi.org/10.1038/s41550-021-01387-z

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