Daniel Costa is the director of immigration law and policy research at the Economic Policy Institute, and a visiting scholar at the University of California, Merced. He is on Twitter. Updated ...

The zero-day "nightmare" apparently isn't over for Microsoft, as a disgruntled researcher who's been feuding with the company for the past three months has dropped yet another proof-of-concept (PoC) ...

Billy Crystal and his wife, Janice, have been married for more than 50 years Kaitlin Stevens is a contributing writer at PEOPLE. She has been working at PEOPLE since 2022. Her work has also appeared ...

Update: Added statement from Microsoft to the end of this article. A security researcher has released a new Microsoft Defender zero-day exploit named "RoguePlanet" just hours after Microsoft fixed two ...

Photonic crystals are periodic optical structures that can control the flow of light. Multiple reflections from surfaces separated by a distance similar to the wavelength prevent an optical beam from ...

Liquid crystals are substances that flow like a liquid but maintain some of the ordered structure of crystals. Liquid-crystal molecules tend to be elongated and to orient in specific directions.