What is the cosmic origin of the elements in the human body?
We know we are made of stars. But what kind of stars?
You are made of elements that have been forged in exploding massive stars, in slowly dying low-mass stars, but also exploding white dwarfs, and merging neutron stars.
On top of all that, also of an element that has been created during the birth of the Universe itself, and hasn't been created in a star.
The acceleration of technological change exposes reach of us to challenges that we have to be able to face. The tools and skills that...
Agriculture is the most fundamental and ancient activity that propelled human civilization as we know it today. Before agriculture, there were modern humans, but...
I lived alone for three months while my wife was in Seoul, for the first time in 40 years. In today's world we receive...
