# Sky & Telescope 2026: Interstellar Comet 3I/ATLAS Has Cold, Ancient Origins

> Sky & Telescope, 2026. 2 records on Mysteries Department cite it. Young, M. 2026. Interstellar Comet 3I/ATLAS Has Cold, Ancient Origins. Sky & Telescope.

Source: https://mysteriesdept.com/sources/SRC0DFPZ6F4HSB0/interstellar-comet-3i-atlas-has-cold-ancient-origins  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)Sky & Telescope 2026

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# Interstellar Comet 3I/ATLAS Has Cold, Ancient Origins

Sky & Telescope, 2026. _Sky & Telescope_.

Sky & Telescope (Monica Young), updated 22 June 2026, on the JWST isotope results and 3I's cold, ancient origin.

**3I/ATLASTertiary source** Web page0

## Cited by on this site 2 records

[Carbon isotopes date the ices to 10 to 12 billion years ago](https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ52T02NDX/carbon-isotopes-date-the-ices-to-10-to-12-billion-years-ago)

Evidence

EVD

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

The mystery article

MYS

## Cite it

```
Sky & Telescope (2026). Interstellar Comet 3I/ATLAS Has Cold, Ancient Origins. Sky & Telescope. https://skyandtelescope.org/astronomy-news/interstellar-comet-3i-atlas-is-ancient/
```

[Read it free at skyandtelescope.org](https://skyandtelescope.org/astronomy-news/interstellar-comet-3i-atlas-is-ancient/)

Key

**SRC** 0DFPZ6F4HSB0

Kind

Web page

Rights

The publisher's

Kept

2 Nov 2026, for editors

Added by

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

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

[CSL-JSON](https://mysteriesdept.com/sources/SRC0DFPZ6F4HSB0/interstellar-comet-3i-atlas-has-cold-ancient-origins/csl.json)