Laser pushed sails—ultrathin need reflective structures that are square meters but weight a gram. If the sails and the ...

Antimicrobial resistance directly causes more than 1 million deaths every year and contributes to more than 35 million more, ...

One method is based on the cell membrane. In 1884, a bacteriologist named Christian Gram created a test that could determine if a bacterium had a thick, mesh-like surrounding cell membrane called ...