June 28, 2019

Secrets encoded in ancient human genomes

Not long after my return to Amman, I took a faculty position at the Hashemite University. The university was built along a busy highway leading to the Syrian border, about fifty minutes from my family’s home. I used to joke to myself along the way that if I felt like it, I could skip class, drive all the way to Damascus, and make it back for my last lecture of the day. The war changed all of that of course. An hour-long commute could seem like a burden, but I actually enjoyed the drive and treasured my time in the car. I would listen to books and novels on tape…

November 30, 2018

Darwin’s principles unravel the evolution of our Galaxy

Chemical elements that make up our bodies and everything around us were made in stars. A star is born once it starts to shine, a process triggered with nuclear fusion in its core. This fusion produces heavier elements. The more massive the star, the heavier the elements it can fuse and produce. A massive star burns up its fuel by cooking heavier and heavier elements up the periodic table to iron. An iron core, however, is unstable because it can’t support the gravity of the outer layers. Thus it collapses, releasing a massive amount of energy and neutrons. Neutrons quickly get captured by the different nuclei produced during the star’s…