Memory Alpha
Memory Alpha
Multiple realities
(covers information from several alternate timelines)
IKS Somraw

The IKS Somraw in the atmosphere of a gas giant

Enterprise (NX-01) above Earth

Enterprise moves through the upper reaches of Earth's atmosphere in an alternate version of 1944

For the unit of measurement, please see atmosphere (or atm).

An atmosphere is layers of gas surrounding a planet or moon, held in place by gravity. In spacecraft, the atmosphere is created and maintained by a ship's life support systems.

The atmosphere of Earth was primarily composed of nitrogen and oxygen, with notable amounts of water vapor, carbon dioxide, and noble gases.

In an alternate version of 1944, the NX-class starship Enterprise entered Earth's atmosphere in order to destroy a Na'kuhl temporal conduit. (ENT: "Storm Front, Part II")

In 1986, as the HMS Bounty was approaching Earth, James T. Kirk asked Spock in what time period they had arrived at. Upon scanning the planet, Spock informed Kirk that based off the pollution content in the atmosphere, he was able to conclude that they had arrived in the late 20th century. (Star Trek IV: The Voyage Home)

Following an asteroid impact on the planet Terra Nova, the toxic debris in the atmosphere was too dense to let a transmission pass. (ENT: "Terra Nova")

In 2152, while sending a shuttlepod to meet with the mining colonists of Paraagan II, Captain Jonathan Archer and Lieutenant Malcolm Reed apparently ignited the tetrazine-filled atmosphere, wiping out the entire colony. (ENT: "Shockwave")

In the 23rd century, the toxicity levels on Urna caused by the enrichment of unstable metals increased. This increase thinned the atmosphere allowing high concentrations of UVB radiation reaching the surface, mutating the plant life on the surface. The planet slowly became unhabitable over the centuries and was eventually deserted. (DIS: "Die Trying")

In 2269, Doctor Leonard McCoy discovered that the former immortal Flint had lost his immortality because he had left the Earth's atmosphere. The Earth's atmosphere was what had made it possible for Flint to have instant tissue regeneration that made him, on Earth, immortal. (TOS: "Requiem for Methuselah")

In 2364, the USS Enterprise-D was able to defeat a cloaked drone of the Echo Papa 607 weapons system by luring it into the atmosphere of Minos, where it became visible. (TNG: "The Arsenal of Freedom")

When travelling through the Bajoran wormhole in 2369 for the second time, the runabout of Benjamin Sisko and Jadzia Dax detected an atmosphere inside the wormhole, which greatly surprised both. (DS9: "Emissary")

Later that year, the space station Deep Space 9 lost its atmosphere due to several power failures. Commander Sisko ordered the decompression protocol and Chief Miles O'Brien stabilized the systems. (DS9: "Q-Less")

In 2372, a Karemma vessel attempted to hide from two Jem'Hadar attack ships in the atmosphere of a gas giant. The USS Defiant followed and was able to destroy both Jem'Hadar ships, despite its systems being compromised by the ambient conditions. (DS9: "Starship Down")

In 2376, Captain Rudy Ransom of the USS Equinox evaded the USS Voyager by taking his ship into the atmosphere of an M-class planet. (VOY: "Equinox, Part II")

The graviton ellipse, discovered by the crew of Voyager in 2376 was found to have a primitive atmosphere. However, according to Ensign Tom Paris, it wasn't anything anybody would want to breathe in. (VOY: "One Small Step")

In the final draft script of TOS: "The Galileo Seven", Murasaki 312 was described as whirling "like some blight in the atmosphere." In the final edit of the episode, however, the reference to "the atmosphere" is instead a reference to "space."


The metaphor "fresh air" was used to describe the need to get out of a situation or a room to "breathe". In June 2151, Captain Jonathan Archer said he could use some "fresh air" while talking to Thy'lek Shran after being held hostage in a room full of Vulcans. (ENT: "The Andorian Incident")

Atmospheric technologies[]

Atmospheric phenomenon[]

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