image: *view more Credit: by Sumit Kumar, Zhen Tong and Xiangqian Jiang Freeform optics bring precision optical systems into a new ear, delivering superior imaging in compact packages, or function… [+6105 chars]
An artist's impression of exoplanets orbiting a red supergiant. The bright light in the distance comes from a faraway star of a similar size. (Image credit: Shutterstock) (opens in new tab)Scientist… [+5654 chars]
Model of ColE1 plasmid replication and copy number The molecular mechanisms that regulate plasmid copy number control have been well characterized26. In the ColE1 origin of replication, used extensi… [+32429 chars]
