Our lives are surprisingly dependent upon this extremely light and unreactive gas, yet supplies of it are remarkably fragile.

Astronomers have unveiled stunning new images of the universe in its infancy, offering a glimpse into the earliest moments ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed.

Credit: Yuri_Arcurs via Getty Images Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests. The findings could have implications ...

Research by the Atacama Cosmology Telescope collaboration has led to the clearest and most precise images yet of the universe’s infancy, the cosmic microwave background radiation that was visible only ...