Black holes and soccer balls don't have much in common, but if black holes are curved when kicked, it might say something ...

The line is called a line of symmetry. This is sometimes called a 'mirror line' or 'mirror symmetry', because if you put a mirror on the line, the reflection would show the whole shape.

The line is called a line of symmetry. This is sometimes called a 'mirror line' or 'mirror symmetry', because if you put a mirror on the line, the reflection would show the whole shape.

This bold concept could address dark matter mysteries and explain cosmic symmetry gaps. In Turok’s hypothesis, right-handed neutrinos—unobserved in our universe—could exist in the mirror ...