Last year, researchers showed that two commercially available liquid biopsy tests for cancer produced drastically different results. Now the companies and researchers are in a war of words to prove who is right.
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Fireworks. So passé, right? That could well be the thinking of one Japanese start-up, which is developing shooting stars on demand, and plans to put on the world's first artificial meteor shower in early 2020.

When iFixit tore down the new MacBook Pros, it found silicone barriers protecting keyboard switches. While Apple claimed these were to make the keyboards quieter, others suspected that the membranes were a way for Apple to fix its troublesome keyboar…