
Red Giant Core Spins Ten Times Faster Than Its Surface
Astronomers have found that the core of a red giant, the type of star that our Sun will eventually become, spins ten times as fast as its surface. And it happens because of a phenomenon we can see here on Earth, too.You have probably seen a figure skater perform a so-called 'scratch spin', where she starts out with arms and free leg extended, before pulling them in – and spinning faster as a result...