When one email service goes down, others don’t stop trying to send emails to users of the affected service. The result is snarled traffic that takes time to clear up.

A method for measuring the world’s crucial carbon sinks finds that the ocean’s so-far-increasing ability to help might taper off in the future.

An experimental test picked up a signal in stored blood samples from people with tiny patches of abnormal cells in their fallopian tubes.

One of the biggest dangers of diabetes is that people can live with high glucose levels for many years without any symptoms.