This Week in Science & Technology (TWiST) April 26th

Welcome to TWiST - your weekly dose of science news. Brought to you by ScienceAlert! Join Dr. Carin Bondar - Biologist With a Twist and Phil Plait as they discuss the link between epigenetics and anorexia, the significance of a mothers touch, comet Ison, and space junk. Check out ScienceAlert on facebook: Follow us on Twitter: @sciencealert Subscribe to our YouTube Channel for great science content! Follow us on G : ScienceAlert