https://wccftech.com/heres-how-nasa-saved-billions-by-choosing-spacexs-largest-rocket/

The SpaceX Falcon Heavy during a 2019 launch. Image: SpaceX/Flickr

Late last month, the National Aeronautics and Space Administration (NASA) awarded astronautic launches services provider Space Exploration Technologies Corp. (SpaceX) a $178 million contract to launch a science mission to Jupiter's ice-covered moon Europa. This mission was originally intended to fly on The Boeing Company's Space Launch System, a rocket built exclusively for NASA's Artemis program. However, the agency had started to caution since early last year that if it chose to proceed with the SLS, cost overruns worth billions would accompany the decision.