Nakai

"Surrender"

- Aliens' message to Destiny, transmitted in English

The blueberry aliens are the first space-capable race encountered by Destiny expedition in one of the galaxies they visited. They first encountered the Tau'ri in 2009.

Overview
Their average height seems to be comparable to humans. They are bipedal, like humans, but with digitigrade locomotion. They also have a pair of fish-like barbels on either side of their heads, beneath their eyes. Their eyes seem to glow or reflect large amounts of light. Physically, they appear to be somewhat weaker than humans, as Nicholas Rush was able to overpower and strangle one without much effort. They communicate with each other in clicks and screeches. Based on their appearance and the ubiquity of water on their vessel, they may be an aquatic (or at least an amphibious) species. The atmosphere on their ships is comfortable for humans, so they are also clearly capable of breathing oxygen.

Technology
"Well, they're advanced, sure, but not as advanced as the Ancients."

- Nicholas Rush

They possess spaceships such as fighters and FTL-capable motherships. They also possess technology that allows them to probe the minds of others. The device allows them to quickly learn basic information and understand the language of the probed being. It is likely they learned some English from Rush, allowing them to transmit messages in English, though they are apparently unable to speak it themselves. They keep prisoners restrained in water-filled tanks.

They have also managed to collect some Ancient technology, as when Rush reads the mind of one of the creatures, he observes it handling a long-range communication stone. Young suspects that Rush stole this stone from the communication device box when he first found it, and the aliens confiscated it from him upon his capture. Rush neither confirms nor denies this. Later, the blueberry aliens were able to use this stone to connect one of their number with Vanessa James' body in order to sabotage the Destiny's FTL and allow another attack, presumably because Destiny's device was active at the time.

History
"I don't think they did want to destroy us. What they really want is Destiny. Probably only care about us because we…recently came aboard."

- Nicholas Rush

The aliens have known about Destiny's existence for some time and the ship has become something of an obsession to them. According to Rush, after prolonged neural connection with one of the aliens he learned that at least one of their fighters was docked with Destiny prior to the arrival of the Expedition. One fighter remained attached and transmitted a tracking signal while another fighter was seen disembarking shortly after the Expedition returned from the desert planet; the former was discovered and destroyed by manually searching Destiny's hull.

The expedition's first known encounter with the alien species occurred when Rush unwittingly activated the distress beacon of a crashed fighter on a barren planet. They captured Rush and suspended him in one of their holding tanks. Their existence was made known to the rest of the expedition a short time later, when Col. Everett Young attempted to use the long-range communication device to contact Earth and was instead connected to one of the aliens. The ship was soon thereafter attacked by their mothership. Chloe Armstrong was kidnapped in the ensuing conflict.

Young used the communication device again to mount a rescue, unintentionally finding Rush instead. The link was severed when Rush showed Young how to use the mind probe technology. Young ordered Eli to destroy the mothership after returning to his body, while Rush rescued Chloe himself and escaped. Though Destiny does not seem to visibly damage the mothership, and was in fact close to destroying itself in the attempt, the mothership retreated shortly after Chloe and Rush escaped in a fighter.

The blueberry aliens later returned, having tracked Destiny using a second subspace transmitter implanted in Rush's chest. They arrived in three motherships and attempted to overwhelm the shields with massed fire. Rush managed to divert power to the shields, resisting the assault, while the transmitter was removed from his body and destroyed. Destiny escaped to FTL only slightly damaged.

When Vanessa James forgot to clear her imprint from a communication stone and no one realized it, the blueberry aliens were able to use the stone in their possession to take over her body and sabotage Destiny's FTL drive in preparation for another attack. In addition, they placed fighters on the only Stargate within range of Destiny, trapping the crew. Two motherships mounted an attack, attempting to board the ship. Thanks to the efforts of Jeremy Franklin, the FTL drive was repaired and the ship escaped before it could be boarded. Ironically, the alien's sabotage attempt actually solved Destiny's problem of not having enough power to reach the next galaxy. It is unknown if the aliens will follow.

Behind the Scenes
The alien armada refered to in the mid-season finale, Resurgence, could belong to the Blueberry Aliens, however this is yet to be confirmed.