Supermassive stars may have formed by repeatedly eating their siblings

Stars merging

When two become one

MARK GARLICK/SCIENCE PHOTO LIBRARY/GETTY IMAGES

Some black holes are bigger than we can explain. They may have formed when supermassive stars collapsed, but we don’t know how those formed either. Now it seems the answer could be that many regular-sized stars smash together to create a bigger one, and we might be able to see this happening with the next generation of space telescopes.

Astronomers have spotted about 200 supermassive black holes – hundreds of thousands to billions of times the mass of the sun – in the early universe, which we can see by observing …

source: newscientist.com