Science news articles about 'helium atoms'

... , leak-proof and impermeable to even nimble helium atoms. The research, by former Cornell graduate student ... the smallest testable gas, since hydrogen atoms pair up as a gas), stays trapped behind a ...

... described as a ticking time bomb. Hydrogen and helium gas from a companion star spirals onto ... builds up on the neutron star’s surface, hydrogen and helium atoms sometimes fuse into heavier elements ...

... 's the mythical holy grail of energy production. Nuclear fusion—the mashing together of two hydrogen atoms into a helium atom with an accompanying release of energy—is currently only the ...

Helium atoms could probe the smallest structures with a light touch.

... the planet, a common approximation in "density functional theory." The ratio of hydrogen to helium atoms approximates the ratio measured on the surface of Jupiter. Each simulation took from one to ...