Koch shared a video on Twitter of the moment she walked through her front door and LBD pounced to shower her with kisses. None other than her dog.
There's a lotta tail wagging, overjoyed jumping, hugs, and - OK we would like some tissues now, please and thank you.
The Michigan-born astronaut, who returned from the International Space Station (ISS) on February 6, set the record for the longest spaceflight by a woman and also took part in the first all-female spacewalk in October a year ago.
It's clear her adorable doggo is ecstatic to finally have her home.
She landed safely on Kazakhstan on Thursday, Feb. 6.
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The end of NC State grad Christina Koch's year in space included a reunion with her dog LBD, and its overwhelmed reaction was captured in a video that is getting millions of views. Koch, 41, says as she gets down on her knees to pet and play with the excited pup.
The electrical engineer-turned astronaut said she counted herself lucky to not have suffered more serious ailments.
Koch's time in space was history-making.
"I didn't necessarily know what this mission was going to turn into when I launched", Koch told ABC News' senior transportation correspondent David Kerley in an interview from the space station last month.
"We take daily sensory inputs for granted until they are absent ..."