Exploring the Secrets of the UniverseA SpaceX Falcon 9 rocket launches with NASA’s Imaging X-ray Polarimetry Explorer (IXPE) spacecraft onboard from Launch Complex 39A, Thursday, Dec. 9, 2021.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/exploring-secrets-of-universe/Copy URL to clipboard> DownloadShareSize1041x674px