The 7 Rocky Earth-Size TRAPPIST-1 Planets Have Remarkably Similar Densities

Precise measurements reveal that the exoplanets have remarkably similar densities, which provides clues about their composition. The red dwarf star PIST-1 is home to the...
The post The 7 Rocky Earth-Size TRAPPIST-1 Planets Have Remarkably Similar Densities appeared first on SciTechDaily.