# Gray 2025: Extreme Negative Polarisation of New Interstellar Comet 3I/ATLAS

> Zuri Gray, Stefano Bagnulo, Galin Borisov, 2025. 2 records on Mysteries Department cite it. Gray, Z., Bagnulo, S., Borisov, G. et al. 2025. Extreme…

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# Extreme Negative Polarisation of New Interstellar Comet 3I/ATLAS

Zuri Gray, Stefano Bagnulo, Galin Borisov, 2025. _arXiv_.

Deep, narrow negative polarisation branch: minimum -2.7% at 7 deg phase, inversion angle 17 deg, unprecedented among asteroids and comets.

**3I/ATLAS** Preprint0

## Cited by on this site 2 records

[Polarisation unchanged across perihelion, fitted by porous aggregates](https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ475QVY2W/polarisation-unchanged-across-perihelion-fitted-by-porous)

Evidence

EVD

[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)

The mystery article

MYS

## Cite it

```
Gray, Z., Bagnulo, S., & Borisov, G. (2025). Extreme Negative Polarisation of New Interstellar Comet 3I/ATLAS. arXiv. https://arxiv.org/abs/2509.05181
```

[Read it free at arxiv.org](https://arxiv.org/abs/2509.05181)

Key

**SRC** 0DFPWGSF6D0A

Kind

Preprint

Rights

arXiv-nonexclusive

Kept

2 Nov 2026, for editors

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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