Why doesn't Kitty Pryde fall through the floor when using her special powers to phase? If she can move through walls, etc, surely she should just keep falling down.

  • 5
    The real answer for almost all stories where people are out of phase with matter in general but manage to walk around is bad writing. But that will be our secret... Commented Apr 10, 2012 at 20:44
  • @ThaddeusHowze Shouldn't a person out of phase be unaffected by gravity? Commented Apr 10, 2012 at 21:12
  • That is a good point. They might not phase through the floor, they might float, but on a spaceship or plane, they would also be left behind... Commented Apr 10, 2012 at 21:16
  • The other kicker for me is always "how do they breathe?" but I can shrug that off more easily than this.
    – dlanod
    Commented Apr 10, 2012 at 21:20
  • 2
    @dlanod Kitty doesn't normally; she holds her breath.
    – AncientSwordRage
    Commented Apr 10, 2012 at 21:21

1 Answer 1


From Wikipedia:

While phasing, she does not physically walk on surfaces, but rather interacts with the molecules of air above them, allowing her to ascend and descend, causing her to seemingly walk on air.

One could extrapolate that she interacts with other molecules to control how much she would phase through the ground, when she does so.

It has been shown, in a few stories, that she can walk high in the air, but she has to concentrate in order not to fall.

In Uncanny X-Men #143 (1981) it shows her "using her phasing ability to literally walk on individual molecules of air":

Kitty Pryde walks on air

  • Do we know whether that's explained in the comics, or is that just Wikipedia?
    – dlanod
    Commented Apr 10, 2012 at 21:21
  • @dlanod flickr.com/photos/kaptainkobold/191181454 here's an example of her walking on air in the comics. Commented Apr 10, 2012 at 21:26
  • 1
    Here it explains that she's interacting with the individual molecules flickr.com/photos/95492938@N00/181043130 Commented Apr 10, 2012 at 21:28
  • @OghmaOsiris this second link appears to be wrong - it shows a gallery of photos with the tag "walkingonair"
    – Wilerson
    Commented Apr 10, 2012 at 21:32
  • I fixed it. It should work now. Commented Apr 10, 2012 at 21:52

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