This video shows how to make the Blue Bottle Reaction, where a clear liquid turns bright blue when shaken, then fades as it sits still. The secret? It’s all about how oxygen reacts with the dye in the ...

Just listen to some politicians explain why the streetlights still don’t work. Or try reading the fine print of your internet bundle—“fair usage policy” sounds like a peace treaty negotiation.Yet, the ...

The Pennsylvania Department of Environmental Protection said it's beginning an investigation into a chemical spill in South Whitehall Township. The spill happened Sunday morning at the GEO Specialty ...

Governments around the world are making a big bet that the first vaccines for COVID-19 could be made with genetically engineered viruses. The engineered viruses, called adenoviral vectors, are ...