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Was vaccinating vulnerable people first a good choice? Hindsight allows us to assess this question.

A game you're almost certain to lose...

What are the challenges of communicating from the frontiers of mathematical research, and why should we be doing it?

Celebrate Pi Day with the stars of our podcast,

*Maths on the move*!Maths meets politics as early career mathematicians present their work at the Houses of Parliament.

article states :

"The body exterts a huge gravitational pull, and to escape its clutches you'd need to accelerate away from it very hard indeed. Now if the body is so dense that escape becomes impossible for everything including light, then the resulting object is called a black hole."

The speed of light is a universal constant, and it does not accelerate. But according to this article, acceleration is needed to escape the body's gravitational pull. Am I missing something here?