Earth came early to the party in the evolving universe. According to a new theoretical study, when our solar system was born 4.6 billion years ago only eight percent of the potentially habitable planets that will ever form in the universe existed.

In this perfectly timed photo we see Strokkur, a famous geyser in Iceland, on the verge of eruption. Located in the geothermal area beside the Hvítá River (in the southwest part of the country, east of Reykjavík), Strokkur erupts about every 4–8 minutes and can reach heights of 15–20 meters (50-65 ft), and sometimes even up to heights of 40 m (131 ft).

"A few years ago when I was working as a helicopter pilot for a local radio station, we were required to fly around all of Mexico City chasing news and traffic. I remember flying up to the highway that connects Mexico City with the neighboring state of Puebla, and on my way back this housing complex that seemed to go on forever caught my attention. I decided to circle around to observe from up close what I later found out was the recently built San Buenaventura complex..."

It's no secret that reading is good for you. Just six minutes of reading is enough to reduce stress by 68%, and numerous studies have shown that reading keeps your brain functioning effectively as you age. One study even found that elderly individuals who read regularly are 2.5 times less likely to develop Alzheimer's than their peers. But not all forms of reading are created equal.

Ambitious blueprint for London tower block that could house thousands of people - as well as schools, offices, shops and even parks