This summer, the Earth had its shortest day ever, thanks to a wobble in its axis that allowed it to complete a single spin in a fraction of a second less than 24 hours. According to the website timeanddate.com, June … Read More
Starting June 3, all five naked-eye planets will be up in the pre-dawn sky. This month, skywatchers will be treated to a rare “planet parade”: all five naked-eye worlds will align in their proper orbital order from the sun in … Read More
For the first time in modern history, the global population is expected to decline within the next century, ushering in a “revolution in the story of our human civilization” and profound changes in how people live. The current global population … Read More
Earth’s interior is a far from quiet place. Deep below our surface activities, the planet rumbles with activity, from plate tectonics to convection currents that circulate through the hot magmatic fluids far underneath the crust. Understanding the origin of the … Read More
New research shows that our Moon once had an atmosphere 3 to 4 billion years ago. It formed when volcanic eruptions rocked the ancient satellite, propelling gases above its surface too rapidly for them to seep into space. The surface of … Read More
We all know that Earth is old, but it’s hard to put into perspective just how old it is. After all, what does 4.5 billion years really mean? How do you even comprehend that amount of time with our short-lived human brains? … Read More