Last week, a short video of Robert F. Kennedy Jr., a well-known American politician and health advocate, caused a frenzy online. In the clip, taken during a flight, he is seen using a pipette to ...

To understand this process, the researchers used a special dye, methylene blue, to track freezing in open cylindrical glass containers. The dye easily dissolves in water and turns it blue.

A recent viral video of Robert F. Kennedy Jr. using a bright blue liquid sparked widespread curiosity about methylene blue—a substance that has been making waves on social media as a supposed ...