Science Daily

1. 3D printing in vivo using sound

   New technique for cell or drug delivery, localization of bioelectric materials, and wound healing uses ultrasound to activate printing within the body.

2. Eating ultra-processed foods may harm your health

   Consumption of ultra-processed foods, such as sugar-sweetened beverages, potato chips and packaged cookies, may be associated with adverse health outcomes. Study finds each additional 100 grams/day consumption of ultra-processed foods increased risk of hypertension, cardiovascular events, cancer and more.

3. Satellites observe glacier committing 'ice piracy'

   A glacier in Antarctica is committing 'ice piracy' -- stealing ice from a neighbor -- in a phenomenon that has never been observed in such a short time frame, say scientists.

4. One glass, full color: Sub-millimeter waveguide shrinks AR glasses

   Augmented-reality (AR) technology is rapidly finding its way into everyday life, from education and healthcare to gaming and entertainment. However, the core AR device remains bulky and heavy, making prolonged wear uncomfortable. A breakthrough now promises to change that. A research team has slashed both thickness and weight using a single-layer waveguide.

5. Waxing and waning prairie: New study unravels causes of ancient climate changes

   A long period of drought in North America has been recognized by scientists for decades. A new study links the severe climate to a change in Earth's orbit.