Meanwhile...
After a small while, with the bridge crew of the Discovery finding some interference in communicating with the other ship for some reason they can only hypothesize initially, the other mysterious ship managed to establish communications, the comm channel screen displaying the presumed captain on the front of the bridge. A man with an outfit that sported the Starfleet emblem on his breast, but his uniform was brightly colored; a bright yellow at that, surrounded by a crew of bright blue and red, in comparison to the Discovery who all sported dark blue uniforms.
If they needed any more confirmation that they weren't exactly back home. Not too far, but not close enough.
"This is Captain Kirk of the USS Enterprise. You folks need any help? Looking a little conspicuous all the way out here in the middle of nowhere," the man said, "By the way, what's with those uniforms? A bit old-fashioned, don't you think?"
"That's all... a long story, I'm afraid. My name is Saru; I am the Acting Captain of the USS Discovery," Saru responded, holding his hands together, "It's all... a rather long story, but it's fortuitous that you stumbled upon us like this. We're a bit... misplaced."
Kirk cocked an eyebrow. "How's that?"
"It's... difficult to explain," Saru said unconfidently, unable to exactly phrase his words, until Sarek stood up, having been standing in the back of the bridge for the past few moments before deciding to step forward.
Stepping forward, the Vulcan Ambassador began to speak in place of Saru, in a far more dry and blunt manner. "The crew of this ship and I, among others we've... inadvertently anchored onto our position, hail from... another dimension. One that is hopefully similar to yours, but still notably different."
Kirk blinked in surprise, eyes widening as though taken aback. Not by Sarek's words, but rather, by Sarek himself. "Uh... Ambassador Sarek? How are you...?" The captain trailed off, seeming to be surprised at Sarek's appearance, though the ambassador didn't seem to recognize Kirk. It was his turn to cock an eyebrow, looking at Kirk seriously.
"... Have we met?"
"We just dropped you off at Babel several hours ago. What are you doing here?"
Sarek let out a short breath, feeling as though his words had been ignored by the captain, though he'd admit, the ambassador found it mildly puzzling that Captain Kirk seemed to recognize him. A glimpse into his own future perhaps? Or just a wildly different turn of events? It was difficult to tell, especially with no established stardate.
Before Sarek could respond, a younger man -- looking staggeringly similar to Sarek -- stood up, sporting a light blue uniform and walking next to Kirk, uttering only one word that nearly made Sarek's heart stop, if he were even capable of such emotion.
"... Father."
Sarek's eyes widened briefly, before furrowing his brow, as though surprise morphed into curiosity over the course of a second or two. Once again, before he could even respond, it was then that Burnham appeared on the bridge, only to be met with the image of Kirk and Spock plastered on the screen. The fellow Vulcan's confusion only grew with her appearance, not that Saru, Kirk, or anyone else there might fathom why.
Except for Sarek.
"... Michael?"
Letting out a deep breath, Sarek finally spoke again, finally able to put the pieces together. "Perhaps we'd... do better if we all met aboard the Enterprise and discussed everything calmly. Everything will be made clear soon enough. Wouldn't you agree, Michael? Spock?"
"Fascinating..." Spock, son of Sarek, could only utter, before nodding his head, "Indeed, that would be a logical course of action."
"Yeah, I'm gonna need some catching up to do..." Kirk only grunted.
@Atomic Knight
After a small while, with the bridge crew of the Discovery finding some interference in communicating with the other ship for some reason they can only hypothesize initially, the other mysterious ship managed to establish communications, the comm channel screen displaying the presumed captain on the front of the bridge. A man with an outfit that sported the Starfleet emblem on his breast, but his uniform was brightly colored; a bright yellow at that, surrounded by a crew of bright blue and red, in comparison to the Discovery who all sported dark blue uniforms.
If they needed any more confirmation that they weren't exactly back home. Not too far, but not close enough.

"This is Captain Kirk of the USS Enterprise. You folks need any help? Looking a little conspicuous all the way out here in the middle of nowhere," the man said, "By the way, what's with those uniforms? A bit old-fashioned, don't you think?"
"That's all... a long story, I'm afraid. My name is Saru; I am the Acting Captain of the USS Discovery," Saru responded, holding his hands together, "It's all... a rather long story, but it's fortuitous that you stumbled upon us like this. We're a bit... misplaced."
Kirk cocked an eyebrow. "How's that?"
"It's... difficult to explain," Saru said unconfidently, unable to exactly phrase his words, until Sarek stood up, having been standing in the back of the bridge for the past few moments before deciding to step forward.
Stepping forward, the Vulcan Ambassador began to speak in place of Saru, in a far more dry and blunt manner. "The crew of this ship and I, among others we've... inadvertently anchored onto our position, hail from... another dimension. One that is hopefully similar to yours, but still notably different."
Kirk blinked in surprise, eyes widening as though taken aback. Not by Sarek's words, but rather, by Sarek himself. "Uh... Ambassador Sarek? How are you...?" The captain trailed off, seeming to be surprised at Sarek's appearance, though the ambassador didn't seem to recognize Kirk. It was his turn to cock an eyebrow, looking at Kirk seriously.
"... Have we met?"
"We just dropped you off at Babel several hours ago. What are you doing here?"
Sarek let out a short breath, feeling as though his words had been ignored by the captain, though he'd admit, the ambassador found it mildly puzzling that Captain Kirk seemed to recognize him. A glimpse into his own future perhaps? Or just a wildly different turn of events? It was difficult to tell, especially with no established stardate.
Before Sarek could respond, a younger man -- looking staggeringly similar to Sarek -- stood up, sporting a light blue uniform and walking next to Kirk, uttering only one word that nearly made Sarek's heart stop, if he were even capable of such emotion.

"... Father."
Sarek's eyes widened briefly, before furrowing his brow, as though surprise morphed into curiosity over the course of a second or two. Once again, before he could even respond, it was then that Burnham appeared on the bridge, only to be met with the image of Kirk and Spock plastered on the screen. The fellow Vulcan's confusion only grew with her appearance, not that Saru, Kirk, or anyone else there might fathom why.
Except for Sarek.
"... Michael?"
Letting out a deep breath, Sarek finally spoke again, finally able to put the pieces together. "Perhaps we'd... do better if we all met aboard the Enterprise and discussed everything calmly. Everything will be made clear soon enough. Wouldn't you agree, Michael? Spock?"
"Fascinating..." Spock, son of Sarek, could only utter, before nodding his head, "Indeed, that would be a logical course of action."

"Yeah, I'm gonna need some catching up to do..." Kirk only grunted.
@Atomic Knight