Roberta Kwok

All Stories by Roberta Kwok

  1. Chemistry

    These gems make their own way

    Gemstones made in the lab could improve your cell phone or catch nasty bacteria in your water.

  2. Scientist Profile: Wally Gilbert

    Wally Gilbert is interested in just about everything. He began by studying physics and then switched to biology, eventually winning an Albert Lasker Basic Medical Research Award in 1979 and then a Nobel Prize in Chemistry in 1980.

  3. Animals

    Little beetle, big horns

    Why do dung beetles have horns? Biologists sniff out some answers.