Elon Musk is thrilled as SpaceX's Starship becomes world's tallest rocket ' and he's not alone

SpaceX's Starship fully stacked. Image credit: Elon Musk/TwitterSpaceX's Starship rocket has been officially named the world's tallest. Elon Musk has already reached the moon.SpaceX placed its Starship spacecraft onto its Super Heavy rocket for the first-time on Friday, Aug. 6. The stacked spacecraft stands at 395 feet (120 m) high. It is also taller than the launch stand at 475 feet (145 m)Elon Musk, SpaceX CEO and founder, was thrilled by this milestone.Musk shared some Starship "Fully Sacked" photos via Twitter. He also wrote that it was an honor to work alongside such a great team and that it was a "Dream come True" to see the vehicle stack.Video: SpaceX's Starship SN20 and a fuel tank rollout to the launch sitePhotos: SpaceX launches a super heavy rocket from the launch standStarship Fully Stacked pic.twitter.com/Fs88RNsmfHAugust 6, 2021 See moreStarship's SN20 spacecraft prototype was stacked Friday. It was then secured to a Super Heavy prototype called Booster 4. This is part of preparation for the orbital test flight the company has in mind for the vehicle.Musk isn't the only one excited about today's accomplishment. CNBC space reporter Michael Sheetz posted a Twitter video showing Starship fully stacked by Tim Dodd (also known as "Everyday Astronaut").The video shows people cheering and clapping to celebrate Starship's arrival in South Texas. Sheetz asked Thomas Zurbuchen (associate administrator for NASA's Science Mission Directorate), his thoughts. He knows Zurbuchen has been following Starship’s journey closely.Zurbuchen quickly added his excitement to the mix, tweeting: "Yes, I have followed this all along, and am excited for SpaceX reaching this milestone!" It will fly!Image 1 of 7 SpaceX's Starship SN20 during the first-ever stacking atop of its Super Heavy booster. Image credit: SpaceX/Elon Musk via twitter Image 2 of 7 SpaceX's Starship SN20 in its first ever stacking atop the Super Heavy booster. (Image credit SpaceX/Elon Musk via Tweet Image 3 of 7 Views SpaceX's Starship SN20 in its first ever stacking atop the Super Heavy booster. (Image credit SpaceX/Elon Musk via twitter Image 4 of 7 Views SpaceX's Starship SN20 in its first ever stacking atop the Super Heavy booster. SpaceX Image 5 of 7 Views SpaceX's Starship SN20 during the first-ever stacking atop their Super Heavy booster. (Image credit SpaceX) Image 6 from 7 Views of SpaceX’s Starship SN20 during the first-ever stacking atop their Super Heavy booster. Image 7 of 7 Views of SpaceX’s Starship SN20 during the first-ever stacking atop their Super Heavy booster. SpaceX image creditA big crowd on hand in Texas to watch SpaceX stack its first Starship rocket bound for orbit: https://t.co/4XtQJl5wfbAugust 6, 2021 See moreMusk has been responding to many people on Twitter (seemingly a sign that he is excited), and responded to Zurbuchen's comment by saying that Starship "due its size & ability return science instruments even deep space, Starship" will allow a whole new breed of science missions.Starship's size and ability to return science instruments from deep space will allow for a new type of science mission. August 6, 2021. See moreStarship is SpaceX's spacecraft that flies humans to distant destinations such as Mars, the moon and Mars. It consists of both the Starship spacecraft and the Super Heavy first stage booster.NASA granted SpaceX the Human Landing System contract in April for a Starship version to land astronauts on lunar surface. This was part of its moon-bound Artemis program.Chelsea Gohd can be reached at cgohd@space.com. Follow her on Twitter @chelsea_gohd. Follow us on Facebook and Twitter @Spacedotcom