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A new machine learning framework provides doctors with a reliable tool to help diagnose Alzheimer's disease early.

What do we know about monkeypox, what do we not know, and what efforts are going into modelling it?

The COVID-19 emergency resulted in some amazing mathematical collaborations.

Here's a simple game at which a human can out-fox even the cleverest algorithm.

The INI is celebrating its 30th birthday. What is it and what is it do for maths and mathematicians?

"It is the same thing for observer 1 to rapidly travel into the past as it is for observer 2 to rapidly travel into the future."

No, it is not. Going back in time would imply that the time order of the meetings as seen by observer 2 is the reverse of the meetings order as seen by observer 1. As presently "understood", if meeting 2 is later than meeting 1 for one observer then it will also be later for the other observer.