this week in science. ▶ 3D-Printed Bionic Ear: ▶ Brain & Aging: ▶ New Species of Dinosaur: ▶ Grey Hair Treatment: ▶ New Galaxy: ▶ Micro-Chips in Paper: Scie this week in science ▶ 3D-Printed Bionic Ear: Brain & Aging: New Species of Dinosaur: Grey Hair Treatment: Galaxy: Micro-Chips Paper: Scie