This means that helium has been continuously generated ever since the earth was formed. Some of the gas might eventually creep through the earth and escape into the atmosphere; fortunately, when ...

Lockyer very quickly came to the conclusion that he’d found a new element, which he dubbed helium, after Helios the Greek personification of the Sun. It was a giddy leap of faith which ...

Hydrogen and helium separate at pressures and temperatures found within the gas giant Jupiter’s marbled exterior is pretty familiar territory, but it’s still not clear what happens far below ...