Scientists have created an optical device capable of mimicking black holes and the still hypothetical white holes. This ...

Shuhd Garcia was diagnosed with bilateral retinoblastoma in November 2022, after her parents detected an unusual "white reflection" in her eyes in a photograph. Two year old Shuhd had to start ...

Diffuse reflection from surfaces can also subtract colours from light. White surfaces reflect all colours of light, which is why they appear white. Black surfaces ... enter the eye, which ...