Aditya-L1, a new solar observatory launched in 2023, wasted no time proving its worth. Just a few months after it was ...

Caption Long-wave ultraviolet and white-light illumination of lesions associated with white-nose syndrome. Points of orange-yellow fluorescence (arrows) detected on a roosting Indiana myotis ...

The synthetic dye used, called tartrazine, absorbs long-wave ultraviolet light (UV-A) and blue light. Red and orange-coloured light can penetrate the tissue. The researchers said the dye can be ...

Rice University graduate student Catherine Arndt helped create a potentially disruptive technology for ultraviolet optics, a solid-state “metalens” that transforms long-wave UV into focused ...