At the heart of the Milky Way lies a supermassive black hole — Sagittarius A*. The colossal structure is about 4 million times the mass of the sun and lies approximately 26,000 light-years away ...

More massive stars than the Sun have a very different life cycle and follow the right hand path in the diagram above ... rightarrow{neutron~star,~or~a~black~hole~(depending~on~size)}\) ...

The team behind new research on the topic suggests that measuring whether gravitational waves from black hole mergers are right- or left-handed can tell us if the Cosmological Principle — an ...