We once thought that only our more modern, adaptive immune system had memory. Now a breakthrough in understanding our other, more primitive, immune defences could change how we fight disease
Johnson & Johnson covid-19 vaccines have been paused in the US after rare reports of blood clots, similar to those linked with the AstraZeneca vaccine in other countries. Could the cause of the clots be the same?
The latest coronavirus news updated every day including coronavirus cases, the latest news, features and interviews from New Scientist and essential information about the covid-19 pandemic
Artifacts last longer than signals and may be cheaper for alien civilizations to send out.
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