Cesium is a metal in group IA of the periodic table with atomic number 55, an atomic weight of 132.905, and a density of 1.9 Mg/m 3. Its melting point is 28.7 C, and it boils at 690 C. The electronic ...

CesiumAstro has won a $55 million strategic funding increase (Stratfi) from AFWERX to advance development of Element, its multibeam active phased array satellite. The communications satellite has ...