Obama Welcomes Heroic Astronaut Back To Earth With A Dad Joke

The Twitter world has been abuzz since astronaut Scott Kelly's safe return to Earth with family, friends and fellow astronauts chiming in to greet the slightly younger  and a little bit taller  celebrity earthling.

Even President Barack Obama offered his support, going so far as to include a pun that almost certainly left his daughters shaking their heads.

As the 52-year-old veteran astronaut would be the first to tell you, a year in space  is a long, lonely endeavor.

"It felt like I'd been up there my whole life , you know, after about the first six months," he said during an interview Wednesday, just hours after he and two Russian cosmonauts landed safely  in Kazakhstan. "A year is really, really long."

The welcome home he's received, however, may have made up for the extended time away. Below, scroll through some tweets that were sent to Kelly from celebrities, politicians and astronauts.