This Week on Science Seen
Until recently our cosmic neighborhood was growing faster than the speed of light. Now it’s run into a roadblock.
“From a physical point of view everything that is outside our neighborhood is pure extrapolation.” – Willem de Sitter (1932) Physics is coming up against two fundamental limits: It can never observe the biggest and the smallest things that it needs to study. Some seem satisfied this is the end of our search for ultimate […]