Shortly after her mission to Freedom's Hope, Columbia was rotated to inactive status within the fleet. Solaris was then assigned to the U.S.S. Constitution on Stardate 239211.15, as an Intelligence Officer. On her first mission aboard the Constitution, the ship was thrown back to the year 1914, just before the outbreak of World War I. Solaris was present, in orbit of Earth, as the first shots of the war were fired. Upon the ships return to the present, the ships crew was debriefed by Starfleet Intelligence, and cleared of any wrong doing. Solaris was awarded the Defense of Temporal Flow Ribbon for her actions in preserving the time line, and the Prometheus Ribbon for assisting in the cleanup of the Prometheus Incident.
Not content with being around for only one historical event, the Constitution picked up a distress call from the U.S.S. Unity, an Oberth-class science vessel that had been presumed lost for over a century. The Constitution was dispatched to the Betreka Nebula to ascertain the status of the vessel. Upon arrival in the Betreka Nebula, the Constitution discovered the long lost U.S.S. Unity adrift. The ship was long since deserted and a hostile entity occupied it. Solaris accompanied an away team to the ship, in an attempt to learn just what had happened to the Oberth-class vessel. Upon her return to the Constitution and the ships subsequent departure from the Nebula, Solaris was promoted to Lieutenant JG and given the position of Chief Intelligence Officer. She was also awarded with a Captain's Commendation Ribbon for her actions while aboard the Unity.
After arriving at Starbase 11 after the discovery of Unity, and a short period of shore leave, (spent in the company of her friend Sinda Essen), the Constitution was contacted by a Suliban woman, who requested the ships help with the investigation of a murder. The Constitution set out for the planet Lerayn and Solaris was tasked with helping prepare a threat assessment on possible suspects. Upon arrival at the planet 2 members of the crew, and the Suliban woman Akana were beamed off the ship to an unknown location on the planet below. Solaris accompanied Sinda Essen and Tad Cooper to find them and bring them back. Once they had been found, Akana attacked the two crewmen and Solaris attempted to disarm her before she could shoot Sinda. She was shot in the side during the ensuing scuffle. The crew soon discovered that Akana had been brainwashed to commit the murder herself, she and another Suliban were admitted to the psychiatric facilites at Starbase 11, and with no reason to hold them, the other Suliban were returned to their planet, to face their own societies justice system. The Constitution then returned to Starbase 11, for some well deserved shore leave.
The downtime after the Constitution's mission to the planet Lerayn provided the crew with some much needed rest, and saw Solaris awarded her first, and hopefully only, Purple Heart as well as the Gold Lifesaving Ribbon, for her attempt to disarm Akana, and her resultant wound. The senior staff enjoyed a night of pizza and bowling, which also saw Solaris grow more confused about her blossoming relationship with Sinda. Rest was short, and the Constitution was soon called upon to assist a group of Dokkaran's in resettling to a new planet, because their current one had become poisoned, and as a result, was also poisoning them. Enroute to the new planet, Dagorin VI, a probe launched by the Constitution picked up an unknown signal, which alerted the crew to possible involvement of the long thought dead Orion Syndicate, and upon searching the Dokkaran transports, a tracking device was discovered, leading to another mystery.
Upon arrive in orbit of the planet, Solaris accompanied an away team to the surface to scout the planet out for possible settlement by the Dokkarans. After a short look around, accompanying the Dokkaran scientist, Merina Lirane, the team regrouped to discuss their findings and decide a further course of action. The team split up again and Solaris' group, consisted of herself, Doctor Wyn Foster, Merina and Lt. Gina Es-Aleh went searching again. The group discovered a section of forest where the trees has been cut open, apparently being harvested of their sap, which had was discovered to be a powerful narcotic. The group was then ambushed by a pair from the Orion Syndicate and captured. They were taken to the Syndicate's underground bunker.
Upon waking up, Solaris found herself and part of her group contained in a cell, with Merina no where to be seen. An Orion and Ferengi soon arrived to question them, resulting in Gina being beaten and taken from their cell. An alarm was soon sounded and, using the resulting confusion, Solaris and Doctor Foster escaped from the cell, in an effort to find their team and escape the bunker. Along the way they reunited with Gina, and running into the Orion from before. Doctor Foster was hit by a blast form the Orion's disruptor, leaving Solaris in charge for the time being. She carried Foster and Gina lead them to a control room where they found the Ferengi and Merina. With the bunker set to self destruct, time was running out for the group. Merina managed to shut down the dampening field keeping them from contacting their ship and Foster managed to knock out the Ferengi. Shortly before the self destruct went off the Constitution was able to beam the away teams up.
After the Constitution helped the Dokkarans get settled, the Constitution returned to Starbase 11 for some well deserved shoreleave, where members of the crew, including Solaris, were surprised to find that Starfleet had invited their families for a family reunion. Upon discovering that her friend Sinda Essen was departing on a secret mission Sol offered to go with her, but ultimately stayed behind in case she needed call in the cavalry. Sol enjoyed the reunion in the meantime, but was constantly worried about Essen. She was happy about getting to see her parents in person for the first time since she had graduated the academy. She also shared a couple of dances with the ships botanist, Sherana.
After the reunion, the Constitution was transferred to Starbase 104 inorder to help facilitate peace talks between two new Federation members, the Linara and the Hinji. Soon after the talks got underway, a pandemic spread through the station. Sol found herself in command of the Constitution when the station requested her assistance. Sol mobilized the Constitution's departments and corrdinated their efforts while the station crew was spread thin. While Solaris wasnt a direct part of the peace talks aboard Starbase 104, the mission did provide her with her first taste of true command.
During the Constitution's shoreleave between missions Sol and her department accepted delivery of a Flyer-class shuttle, having previously been requisitioned by herself and Captain Rajel in order to better augment the Constitution's intelligence gathering capabilities. The shuttle, dubbed the Spectre was intended to become the fleets first intelligence prowler, undergoing the beginnings of a drastic modification to render it more capable of gather information while remaining undetected, at the cost of its weapons. It was also during this time that Sol expressed her desire to move further into a command role while also maintaining her intelligence duties.
The Constitution's next mission found the crew departing for Leron III, the homeworld of the Hinji in order to provide humanitarian support for the races over crowded homeworld. In from by the ship's XO, Maxwell Traenor of a sensor blind spot, approximately 10km in diameter, on the planet's surface Solaris was assigned to lead an away team to determine the cause of this blind spot. She, along with Jerry Milsap, T'Reshik, Choi Ji-hu and Lara Grayson departed the Constitution in the shuttle Esienhorn to scout out the blind spot. Upon crossing into the area of the blind spot their shuttle lost power and crashed on the surface or Leron III with no power and no way of communicating with their ship. The team sustained minor injuries, with Sol sustaining a broken arm. As they departed the shuttle to make their way to the near by Tirthal Displacement Camp, the group was approached by a cat-like creature, which brought a stick with it. It left the stick and darted off into the forest in the direction the away team was planning to go.