-Apr 27, 20194 min read4.6 Billion Years of MeSaturday April 27, 2019: Basic Facts: - About 4.6 billion years old - Diameter of 1.39 million km (864,000 miles) - Mass of 2 x 10^30 kg...
-Apr 1, 20191 min readPhoto of the Week: April 1stMonday April 1, 2019: Glowing on top is our closest star, the Sun. For the past 4.6 billion years and counting, this mid-size star has...