Related topics: light

Hubble views an interacting spiral

This image, taken by the Wide Field and Planetary Camera 2 on NASA's Hubble Space Telescope, features the spiral galaxy NGC 3509. Located some 350 million light-years away, NGC 3509 is an interesting galaxy whose sweeping ...

Racism is different from colorism

Ronald Hall is a professor in the School of Social Work at Michigan State University. He has written over 200 books/articles/monographs, etc., on colorism—discrimination on the basis of skin tone, often among the same ethnic ...

Organic polymeric scintillators excite the X-ray community

X-ray detection is of great importance in diverse applications, such as radiation detection, medical diagnosis, and security inspection. A popular way to achieve X-ray detection is to integrate a photodetector with a luminescent ...

Online retail images reveal skin tone discrepancies

When Lee Humphreys noticed that models for a retail company—one known for its diversity—appeared lighter-skinned in still photos than in videos, she didn't think it was intentional.

Pterosaur discovery solves ancient feather mystery

An international team of paleontologists has discovered remarkable new evidence that pterosaurs, the flying relatives of dinosaurs, were able to control the color of their feathers using melanin pigments.

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