Ceres Harbors Building Blocks of Life

Ceres, the largest asteroid in the Solar System, and now considered a dwarf planet, may have once been habitable. NASA’s Dawn spacecraft collected samples from the surface and were found to contain organic compounds and amino acids, which are¬†often referred to as the building blocks of life. Dawn has also discovered evidence of a subsurface… Continue reading Ceres Harbors Building Blocks of Life

Celestial Navigation: The Sea Astrolabe

The sea astrolabe was a brass tool constructed and used for the purpose of determining one’s latitude. Most commonly, it was used on long marine voyages that required knowledge of the ship’s exact whereabouts in order to continue in the correct direction. The astrolabe measures the altitude of the sun at noontime or the meridian… Continue reading Celestial Navigation: The Sea Astrolabe