In this episode of NOVA scienceNOW, journey back in time to the birth of our solar system to examine whether the key to our planet's existence might have been the explosive shockwave of an ancient supernova. Meet a chemist who has yielded a new kind of "recipe" for natural processes to assemble and create the building blocks of life. And see how the head louse, a creepy critter that's been sucking our blood for millions of years, is offering clues about our evolution. Finally, meet neuroscientist André Fenton, who is looking into erasing painful memories with an injection.
Take a look back at many of the most fascinating science stories of 2017, a year full of stunning advancements in individual fields of study, from astronomy to biology, geology to history – when we piece these discoveries together we see the year in a new light.
2017 • Science
When most of us hear "scientific research", it conjures the image of serious men and women in meticulous labs using carefully prescribed methods to achieve rather predictable outcomes. We have an expectation that science is calculated and controlled. Yet some of the most influential scientific discoveries have been made entirely by accident. Does chance work alone or are other phenomenons at play? Combining dramatic re-creation with cheeky animation and cleverly manipulated archival images, Gone Sideways illustrates three areas of exploration: medicine, technology and natural science.
In the non-coding 98% of our DNA, we have countless switches to promote or suppress the physiological reactions of our bodies. Interestingly, we can change the states of these switches through our own efforts and even can affect the DNA conditions of our offspring before their birth.