Please keep in mind "TNG: The Pegasus."

It would appear that this would be a superior cloaking device as a ship could pass through objects.

  • 2
    Yes. The Federation. Wait. Dammit.
    – Valorum
    Apr 6, 2015 at 12:41
  • I know, right? LOL
    – JMFB
    Apr 6, 2015 at 12:42

2 Answers 2


The Voth in VOY: Distant Origin. They walk around Voyager using their interphasing cloak, taking note of our matriarchal heirarchy and courtship rituals.

GEGEN: Interphase is stable.

VEER: Curious. I didn't expect the smell.

GEGEN: Well, they are mammals, after all.

Also, the Romulans built a prototype like Pegasus in TNG "The Next Phase". Admittedly it is just a prototype and not "in use."

LAFORGE: I've never seen anything like this. There's something in here that looks like a molecular phase inverter.

RO: What's that?

LAFORGE: It's supposed to change the structure of matter so it can pass through normal matter and energy. Hang on a second. A few years back, we got intelligence reports that the Klingons were working on trying to combine a phase inverter and a cloaking device. In theory, they believed that a phased ship could hide anywhere, even inside a planet, and that conventional weapons would be useless against it.

RO: How far did they get in their research?

LAFORGE: It never got out of the preliminary stages. There were several accidents. The Romulans might be pursuing the same technology, trying to combine an inverter and a cloaking device. And if this is the prototype

RO: Then that would explain the explosion and the chroniton fields.

LAFORGE: And us.

RO: You mean we're cloaked?

LAFORGE: Not just cloaked, phased.

Also, do subspace cloaks count? From VOY: "The Think Tank," Costanza's vessel was cloaked in subspace and did not seem to use a static warp bubble so maybe phasing is involved? Also Dominion Houdini mines from DS9: "The Siege of AR-558."

Also there is another example of temporal phase shifting (like the Devidia) in the Krenim's chronoton torpedos. Though this was not for cloaking so much as for passing through normal shields.

  • The Krenim's 'chronoton torpedoes' were out of temporal phase, not spacial phase.
    – Valorum
    Jun 15, 2016 at 22:13
  • The Houdini mines were hidden in subspace, not phased
    – Valorum
    Jun 15, 2016 at 22:13

In "TNG: Time's Arrow", the aliens on Devidia apears to be using some kind of phasing technology to render themselves invisible and untouchable.

GEORDI: Whatever or whoever's there... is out of phase with us... But we're only talking about a fraction of a second...
WORF: A fraction of a second would make them invisible?
GEORDI: A millisecond, a year... it wouldn't make any difference... If what we're reading is accurate, we're occupying the same space... but in a different time...

  • Is there evidence for or against the phase differential being the Devidian's natural state? Admittedly, it would mean they'd need technology to unphase to match Earth in the past.
    – T.J.L.
    Sep 17, 2015 at 17:50
  • @T.J.L. - There's no evidence. At my best guess, the invisibility tech is housed in the walking stick (along with the time-traveling tech) but there's no confirmation of it.
    – Valorum
    Sep 17, 2015 at 17:52

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