New studies suggest gold could be created in the collision of two neutron stars . If you 're over 40 , your dentist may have filled your mouth with it . Meg Urry : Most elements were made by nuclear fusion inside a star , but not precious metals . The first element to fuse was hydrogen and helium, which are both rare on Earth because they're unstable.
New studies suggest gold could be created in the collision of two neutron stars . Meg Urry : Most elements were made by nuclear fusion inside a star , but not precious metals . The first element to fuse was hydrogen and helium, which are both rare on Earth because they're unstable.