On Tuesday at 4:30pm EST astronaut Mike Massimino upated his Twitter with:

“From orbit: Launch was awesome!! I am feeling great, working hard, & enjoying the magnificent views, the adventure of a lifetime has begun!”

The only thing that separates him from millions of other people who tweet several times a day, every day, is that Massimino tweeted from space, making him the first person to ever tweet from space. He began tweeting in April as he prepared for the mission and with more than 241,000 followers, he kept his promise to file updates from the space shuttle Atlantis as it reasies to repair the Hubble Space Telescope. Atlantis is NASA’s fifth and final repair visit to the Hubble Space Telescope.

You can follow astronaut Mike Massimino on Twitter @Astro_Mike and also Mark Polansky, the commander of the mission @astro_127.