Musings of a Political Scientist

All posts tagged cosmology

Uranium Lead Dating the Earth
Uranium-lead dating computes the age of the earth at 4.54 billion years old with less than 1% margin of error. It is one of the oldest and most refined radiometric dating schemes, with a routine age range of about 1 million years to over 4.5 billion years. Read more

Jupiter and Moons by Bryan Brandenburg
Jupiter has at least 63 moons. The four large moons, known as the "Galilean moons", are Io, Europa, Ganymede and Callisto. Read more

The Sun by Bryan Brandenburg
The Sun is the star at the center of the Solar System. The Earth and other matter orbit the Sun, which by itself accounts for more than 99% of the solar system's mass. Read more