If it were any larger, material from the surface would be flung into orbit around the star.

The larger, the more far-flung, and the more diverse a person's network, the more important email is. You can't make phone calls or personal visits to all your friends very often, but you can 'cc' them regularly with a couple of keystrokes. That turns out to be very important.

We believe that the matter in neutron stars is denser than an atomic nucleus, but it is unclear by how much. Our observations of such a rapidly rotating star set a hard upper limit on its size, and hence on how dense the star can be..

We want observational data that shows which models fit the reality of nature.

There's almost no gravity at the surface. If you were standing on [the surface], you could jump into orbit.

Chad is basically a kid who has all of the material that you need to be a star.