One of the many notable devices in Star Trek is the transporter, which can beam people to any set coordinates. Has there ever been an instance in any Star Trek story where someone was beamed into something solid? For example, someone's arm being trapped in a table or something because they were accidentally beamed into it.

  • 9
    not quite a transporter accident but the results of this subspace anomaly are pretty devastating: memory-alpha.wikia.com/wiki/Van_Mayter -
    – NKCampbell
    Commented Sep 7, 2016 at 3:19
  • 1
    Can't find any sources, but my memory tells me that no, the transporter has never done this, but crewmen have made references to the possibility of it happening. I'll keep looking. Commented Sep 7, 2016 at 3:20
  • 7
    Possibly the closest would be the Pegasus, which was more a form of phased cloaking, but, the ship was able to move itself into an asteroid
    – NKCampbell
    Commented Sep 7, 2016 at 3:24
  • 7
    Related question is whether they've ever addressed what happens to the fluid that they are displacing when they transport into something that's not solid (air).
    – Tenfour04
    Commented Sep 7, 2016 at 13:43
  • 3
    Related: What happens to the air in the area, when things are transported or replicated? - Includes an image of the top answer here
    – Izkata
    Commented Sep 8, 2016 at 2:13

13 Answers 13


Per the Memory Alpha Transporter Section on Accidents there is no occasion listed in which there was an accidental beaming into another object.

That said, the closest such accident I would suggest would be the following:

In 2151, Crewman Ethan Novakovich was beamed back from the face of a planet later known as Archer IV by the still-experimental transporter system aboard Enterprise NX-01. The emergency transport was attempted during a fierce windstorm. Upon arrival, he was unconscious and had rocks, leaves, and other debris from the planet's surface embedded in his skin, due to a malfunction in the phase discriminator.

I would also suggest that the situation with the Pegasus embedded in Asteroid Gamma 601 was more of a cloaking device issue than a transporter. Hence, would not qualify as an answer to the question. But, would logically be a similar type of accident as would the Van Mayter accident noted above in the comments (which was due to a natural sub-space anomaly vs. technology issue).

Also see the Wiki page on Asteroid Gamma 601

  • 16
    Not sure if it was a replicator or transporter, but I believe when the Kazon had an accident with Federation technology, they showed dead Kazons who were melded into the bulkhead of their ship. Commented Sep 7, 2016 at 3:40
  • 3
    @Lèsemajesté Voyager S01E11 - State of Flux. It was a replicator, used without proper shielding.
    – Boann
    Commented Sep 7, 2016 at 15:03
  • 11
    @Boann: That's a debatable case then, as (unlike the Pegasus's phase cloaking), replicators and conventional transporters are closely related technologies. Commented Sep 7, 2016 at 17:59

In the TNG episode "The Schizoid Man" (season 2), an away team was beamed to a planet while the Enterprise was either still using warp power or had briefly dropped out of warp long enough to use the transporter. I forget the exact details but, after the away team arrives, Counselor Troi said something like, "For a moment I thought I was in that wall over there" and Worf replied, "For a moment, you were."

  • This might be better edited into scifi.stackexchange.com/a/139880/12616
    – user12616
    Commented Sep 8, 2016 at 0:06
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    Excellent, in a sense this is closest to a precise answer to the specific question.
    – Fattie
    Commented Sep 9, 2016 at 5:45
  • they weren't actually transported into the wall though, they were transported to an open location without obstructions but the path the beam took was temporarily out of phase because of the speed the ship was moving when the transport occurred. very close I agree, @JoeBlow
    – Malachi
    Commented Sep 9, 2016 at 13:43

The possibility is mentioned:

In "The Cage"

ONE: Now, you all know the situation. We're hoping to transport down inside the Talosian community.
SPOCK: If our measurements and readings are an illusion also, one could find oneself materialised inside solid rock.
ONE: Nothing will be said if any volunteer wants to back out.

Repeated in "The Menagerie part 2"

NUMBER ONE: Now, you all know the situation. We're hoping to transport down inside the Talosian community.
SPOCK: If our measurements and readings are an illusion also, one could find oneself materialised inside solid rock.
NUMBER ONE: Nothing will be said if any volunteer wants to back out.

In "Return to Tomorrow"

SARGON [OC]: I have locked your transporter device on my co-ordinates. Please come to us. Rescue us from oblivion.
SPOCK: Coming from deep under the planet's surface, Captain. Under at least one hundred miles of solid rock.
SARGON [OC]: I will make it possible for your transporter to beam you that deep beneath the surface. Have no fear.
SPOCK: Reading a chamber now. Oxygen-nitrogen atmosphere, suitable for human life support.

SCOTT: I don't like it, sir. The transporter co-ordinates preset by an alien of some sort. You could materialise inside solid rock.
MCCOY: Inside solid rock?
SPOCK: Unlikely. These co-ordinates correspond with the location of the subterranean chamber.
KIRK: I have a feeling that they or it could destroy us just standing here if they or it wanted to.
MULHALL: They or it?

And in "The Savage Curtain"

MCCOY: Yes, a big one. Suddenly, miraculously, we see a small spot of Earth-type environment down there. Now is it really there, or do we just think we see it down there?
SCOTT: You might beam down into a sea of molten lava.
KIRK: But why would he want to kill only two of us?
SPOCK: It would be illogical. With such abilities, they could as easily trick us into destroying the entire vessel.

So that is something that is definitely considered to be possible disaster.

I don't know why they don't worry about materializing in air and getting air bubbles in their bloodstreams.

And also in Star Trek II: The Wath of Khan

SAAVIK: This is not logical. These coordinates are deep inside Regula, ...a planetoid we know to be lifeless. KIRK: If Stage Two was completed, it was going to be underground. ...It was going to be underground, she said.

KIRK: Right! Let's go. ...Saavik. McCOY: Go? Where are we going? KIRK: Where they went. McCOY: Suppose they went nowhere. KIRK: Then this'll be your big chance to get away from it all.

Thanks to ClickRick for mentioning the last one.

  • Pattern Buffers and Phase Discriminators are the reason they don't worry about air in the bloodstream thing
    – Malachi
    Commented Sep 8, 2016 at 17:07
  • I had a vague memory that the same line was used in one of the films - either ST2 or ST3 - when going down into the chamber, but can't find a reference to back that up.
    – ClickRick
    Commented Sep 9, 2016 at 19:38

While definitely non-canon, the "Choose Your Own Adventure" style book Star Trek: Phaser Fight includes a sequence that explores beaming into solid matter:

"Well, if you must," sighs Jinks. "The planet's surface is a bit tricky, so to be safe, you ought to beam down to the following coordinates: 33.51.62".

"That's solid rock," says Mr. Spock to the captain.

"I know," Kirk agrees.

You have the choice to go ahead and beam down at those coordinates.

"It's none of my business, sir", you pipe up, full of confidence, "but our readings were wrong when they told us that there wasn't any life on the planet. The readings are probably wrong about those coordinates being solid rock..."

But it doesn't go well...

You beam down to the surface of the planet. Or, more accurately, into the surface of the planet!

You beamed down into solid rock! The only part of you that’s visible above the rock is your hair!

Well, hair today, gone tomorrow!

enter image description here

  • 1
    No worries. Although everyone and their dog slated this CYOA book, I recall quite liking it as a kid.
    – Valorum
    Commented Sep 7, 2016 at 22:48
  • @Valorum I loved it too. It was a library book for me, so I couldn't keep it, but I always figured it would be around again. Pity that it seems to have wound up in a library book sale because they don't have it any more. Commented Sep 8, 2016 at 1:44
  • Ick, that's grim. Commented Sep 8, 2016 at 10:33
  • Upvoted for "Hair today, gone tomorrow". Can't stop giggling.
    – user14952
    Commented Sep 9, 2016 at 12:39

If people count as solid objects, then yes.

Tuvix was a hybrid being created as the result of a transporter accident on the USS Voyager, combining Lieutenant Tuvok, Neelix, their uniforms, and an orchid in 2372.

Although it might not count, because two transporter streams were merged.

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    I agree with your last statement, that this doesn't fit the spirit of the question. The event you describe involves both objects being decomposed into a matter stream and then reassembled incorrectly (due to the presence of a foreign material). One isn't "beamed into" the other so much as they are "beamed together."
    – jpmc26
    Commented Sep 7, 2016 at 23:18
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    Don't cross the streams! Commented Sep 8, 2016 at 20:30

It is a paradoxical question, if they have figured out how to transport someone without getting all their pieces mixed up with the atmosphere then they should not have to worry about mixing up their body with solid rock.

It should not be possible to transport into rock/stone because your body would have to have space to take up, the rock would have to move from the spot where you materialize, or be displaced. I think there would be some sort of feedback in the matter stream back to the source of transport if you tried to transport into something solid that could not be displaced by the introduction of another object.

Trying to beam into a location where the matter is not easily displaced would not be possible, The beam would be pushed back because the Rock/Stone would not give.

I would be more worried about beaming into Water or some sort of Gas or possibly even Lava as these substances will displace themselves around something being introduced into the midst of them, in other words these things will make room for the object being materialized.

The Matter Stream would not merge Matter from the stream with something outside of the stream. In the case of Neelix and Tuvok, they were both inside the matter stream(s) and materialized, from energy to matter, together, not into one another, from Energy to matter in the same space as Matter already existing in that space.

In the TNG episode "The Schizoid Man" (season 2), an away team was beamed to a planet while the Enterprise was either still using warp power, or had briefly dropped out of warp long enough to use the transporter. I forget the exact details, but after the away team arrives, Counselor Troi said something like "For a moment, I thought I was in that wall over there", and Worf replied "For a moment, you were."

This is because they were temporarily out of phase, which is different than the wall and the person existing, in the same place, at the same time, in the same phase, this is the same reason why the USS Pegasus had its incident in the asteroid, it was out of phase and came back into phase inside of the rock.

That is why they have the Phase Discriminator. From its uses, it appears that it does two things

  1. Makes sure that matter not being transported isn't merged with matter that is being transported

    • In 2151, when Malcolm Reed attempted to beam Crewman Ethan Novakovich up from the surface of a planet during a powerful windstorm, Novakovich rematerialized with debris embedded in his skin, due to the transporter's phase discriminator's inability to isolate the debris from the matter stream. (ENT: "Strange New World")
  2. Keep transported matter in the same "phase"(Time) from source to destination

So when transporting at near warp they existed through more than one "phase", so this is a little different than just straight transporting into Rock/Stone

With Pegasus, the ship and the asteroid existed in the same location but at a different time/phase and when the phase was normalized to the same phase as the rock there were no safeguards to keep the molecules from moving around and merging, which is why the accident happened.

For reference see Phase Discriminator on Memory Alpha

An Afterthought

I think that people in the future may be just as paranoid as we are, for instance if you were told to go into a cave without turning on your flashlight until you are already inside the cave at the predetermined location and then turn on your flashlight, you would probably not like it at all. so you would want to find out where you are beaming to and maybe see it before you just beam to that location. putting your faith in technology like this is going to be hard, I would assume that they would scan the location and probably not "beam" to a location they could not see. I also assume that their imaginations would run wild around the issue of beaming somewhere they could not first see, they would come up with all sorts of mythical issues that sound reasonable but maybe not possible, this would lead to the many discussions that other answers describe. This sort of thing happens today all over Social Media, there is no reason to believe that people of the future would not let their imaginations run wild, I know that most of these characters are very knowledgeable in the science behind the transporter, but I would say there is plenty that they don't know and plenty that they speculate on as well, causing the same imaginative ideas to pop up.

  • 1
    But solid objects are mostly empty space. Would inserting molecules between other molecules be that hard? (not to say there aren't checks in place like the phase discriminator but that seems like it would make it less likely, not impossible.)
    – Brad
    Commented Sep 8, 2016 at 21:32
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    @Brad: hard or easy, if you achieved it the result probably should detonate, since two stable solids interleaved don't (generally speaking) make a stable solid. For the same reason that the molecules in either of the solids alone "want to be" (that is, are stable) a certain distance apart, once you interleave they're closer together than they want to be. Commented Sep 8, 2016 at 23:05
  • the empty space between molecules is empty for a reason, and it is a powerful reason, and that reason makes nuclear energy possible, both fission and fusion. Fusion would be what would happen if you tried to disable all the safeguards and "beam" a person into rock. that is why I was saying that I think there would be feedback, I am thinking like if you try to fill a hose with the one end plugged, the fluid would comeback or stay in the hose because there is nowhere for it to go
    – Malachi
    Commented Sep 9, 2016 at 0:01
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    Even if you did "safely" beam into solid rock (the rock molecules are moved away somehow) you would be trapped motionless with no air and would suffocate very quickly.
    – CJ Dennis
    Commented Sep 9, 2016 at 23:11
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    It occurs to me that we're always worried about ending up inside solid rock if the coordinates are wrong. Why is nobody ever worried about materializing 300 feet in the air and falling to their death? Maybe there is something to the idea of feedback on the "matter stream" after all...
    – BryKKan
    Commented Aug 28, 2018 at 17:35

Not a personal accident, but the USS Pegasus was equipped with a phasing technology that failed halfway through an asteroid and made it materialize in solid rock.


Every time the transporter is used, it is beaming into an object. Air. Air is no more or less special than stone.

Since people don't come out of the transporter carbonated and bubbly inside the air must have gone somewhere. It is either converted into energy by the same process as the sending side, or some kind of force field protects the destination area.

  • 1
    The question asked about a solid object, though. And while air may not be more “special” than stone, it does not proceed that it has the same effects. For example, the transported object might quickly expand into being, with a pressure exerted on it proportional to the density of the surrounding material (the usual thing people are worried about with teleportation into solid objects). Or if the material is converted into energy, you might still end up stuck inside a wall. Or perhaps the substance transported into moves away rapidly, which would be a lot more noticeable for solid objects.
    – Adamant
    Commented Sep 7, 2016 at 18:42
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    Or the transporter "simply" exchanges the two volumes of space?
    – Law29
    Commented Sep 7, 2016 at 22:08
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    I figure the annular confinement beam mentioned several times is a kind of force field that pushes stuff out of the way then keeps it out as the object materializes. Commented Sep 7, 2016 at 22:41
  • @Adamant and Zan: Good points, both of you. Was there ever an time when this was mentioned as a concern, for instance, stating a point when the pressure of the surrounding gaseous medium was too high and operations where inhibited? I certainly remember scenes where extant environmental conditions caused beaming problems but I can't recall at the moment anything specific to density or the composition of atmosphere solely in itself.
    – Dan
    Commented Sep 8, 2016 at 20:56

I'm certain this occurred in an early episode of Enterprise where they used the transporter technology only for transporting cargo. They experimentally use it to transport people, and those people end up with bits of leaves and stuff sticking out of them but as far as I recall, no serious ill effects.

  • 2
    The episode you're thinking of is "Strange New World." From Memory Alpha: "The captain finally decides to get the away team back to Enterprise but the shuttle is unable to land.... The away team is then forced back in the cave.... However, since Novakovich would not go in the cave with the others, it is decided to use the still experimental transporter to bring him back. The transporter is unable to distinguish between Novakovich and the plant life being blown around him, several leaves are embedded in his skin as a result." Link: memory-alpha.wikia.com/wiki/Strange_New_World_(episode)
    – Dan
    Commented Sep 8, 2016 at 20:47
  • Thanks for the link! So happy to know I remembered it correctly as well
    – NibblyPig
    Commented Sep 9, 2016 at 7:03

If water fits the definition of "solid" (technically no, but in terms of imagined results I'd say yes), then in the 2009 Star Trek movie, when Kirk and Scotty are beamed long-distance onto the Enterprise, Scotty ends up in an enormous, water-filled pipe.

  • Okay but he wasn't beamed "into" the water, otherwise he'd have been killed instantly. He was beamed into a space previously occupied by (and entirely surrounded by) water, yes, but that's no different from how they're usually beamed into a space previously occupied by (and mostly surrounded by) air. Commented Sep 10, 2016 at 0:45
  • @LightnessRacesinOrbit So, you think the transporter removed a Scotty-shaped blob of water at the same time as it installed a Scotty-shaped blob of Scotty? Is there any in-universe support for this feature of the transporter? Commented Sep 10, 2016 at 0:56
  • What else would it do? The only alternative is to molecularly merge Scotty with the water. The fact that it is obviously not possible to survive such a state is all the evidence required. Commented Sep 10, 2016 at 1:00

I vaguely recall that this has happened during transporter accidents, but I can't find an episode where it is actually shown, it just might have been somebody talking about it or something.

However, there definitely has been at least one case that we see onscreen case where multiple people are beamed into a solid object (a wall) although only temporarily. This is a side effect of a near warp transport, and does not appear to be in, any way, harmful.


In the non-canon Millennium trilogy of DS9 novels, Chief O'Brien is running a deep scan of the station when he turns up two dead Cardassians fused into a hull plate. After eliminating the possibility that they were sealed inside during manufacturing (according to Kira, even during the Occupation, Cardassian quality assurance would've picked up on something so obvious), he concludes that they must have been transported into the plate and that because of the sheer number of safeguards against such an accident, it must have been deliberate, i.e., murder.

Eventually, the crew determines that the incident was in fact an accident involving a time machine, which was in the process of powering down and so threw the Cardassians back a shorter time than expected. Instead of the room they expected, they appeared inside the wall due to the station's rotation.


In the TNG episode "The Last Outpost", an energy field on the planet interferes with the transporter beam, and I seem to remember someone's foot being stuck in the ceiling of the cave (he was hanging upside down).

  • 1
    you're close - it was Geordi, but he's not in a cave, he merely materialized upside down and is hanging by his foot in a tree - you can see that here: imgur.com/KfirSqK
    – NKCampbell
    Commented Sep 8, 2016 at 0:37
  • 1
    Someone already mentioned this.
    – steenbergh
    Commented Jul 19, 2017 at 9:56

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