- HTXS
- Next-Generation of H-2 Transfer Vehicle Contributor: GSFC
NASA Acronyms. 2013.
NASA Acronyms. 2013.
Beyond Einstein program — The Beyond Einstein program is a NASA project designed to explore the limits of Einstein s theory of General Relativity. The project includes two space observatories, and several observational cosmology probes. The program culminates with the… … Wikipedia