A screenshot of a video showing LK-99 partially levitating. A group of researchers who developed the material say it’s evidence that LK-99 is the world’s first room temperature superconductor. Experts are skeptical. | Image: A screenshot taken of a video uploaded to ScienceCast by Hyun-Tak Kim
If LK-99 is the real deal, it could be a game-changer for everything from quantum computing and medical imaging to energy and transportation. But there are a lot of red flags.