Unstable carbon-14 gradually decays to carbon-12 at a steady rate. The ratio of these carbon isotopes reveals the ages of some of Earth’s oldest inhabitants.
Making future travel plans .. with an emphasis on ‘future?’ Check out these exoplanet travel posters from NASA.
By associating with early humans, dogs enjoyed new foods and the relative safety of human camps. Eventually, dogs traveled the world with their two-legged masters.
Age of Aquarius begins when vernal equinox point moves out of constellation Pisces and into Aquarius. There’s no definitive answer as to when that will be.
This year’s Chinese New Year celebration for 2015 will fall on February 18-19. It’ll ring in the Year of the Sheep. Gong Xi Fa Ca, y’all.
Project Nightflight in Austria has a new web platform, presenting not just astrophotos, but also the sounds they heard while capturing them. It’s wonderful.
When did our human population reach one billion? How long to add each billion after that, to bring us to the 7+ billion humans on Earth today? What’s next?
2015 has six supermoons. The closest on September 28 will also undergo a total lunar eclipse.
Isaac Newton was born on January 4, 1643. His insights laid a foundation for our modern understanding of celestial motion, light and gravity.
The idea we will all weigh less and even experience a floating sensation due to a planetary alignment on January 4, 2015 (#zeroday) is entirely false. Sigh.