Earth's mass took hundreds of years to estimate, and even now, ... Knowing the mass and distance between the spheres, Cavendish calculated that G = 6.74×10−11 m3 kg–1 s−2.

Metallic objects found on ocean floor during 2-week mission. Led by Loeb, the team of scientists and researchers hired EYOS Expeditions and embarked in June aboard a boat called the Silver Star ...

The evolution of planet Earth over 4.5 billion years. Dive into the most dramatic events in Earth’s 4.5-billion-year history, from its birth to the emergence of humanity.