What has the James Webb Space Telescope learned so far? Is it finding galaxies that “break” cosmology? What will we learn next?
Can galaxies ever get destroyed? What happens to their stars? Do galaxies ever die?
What does it mean for the universe to have a center? Could we ever travel to ours? What is a singularity?
How does length contraction work in relativity? Do moving objects really get shorter? What about from their perspective? How are we supposed to make sense of any measurement?
What is the “cold spot” on the cosmic microwave background? Why shouldn’t it exist? What are some possible explanations for it, and why are they unsatisfying?