Astronomers at the UA have observed neon, a gas best known for its use in colorful electric signs, in disk-shaped clouds of dust and gas that form around young sun-like stars. It is in such clouds, ...

Astronomers have observed neon in disks of dust and gas swirling around sunlike stars for the first time. University of Arizona astronomers who collaborated in the observations say that neon could ...

Neon isotopes from glassy rocks on the ocean floor may hold the key to understanding how Earth formed 4.5 billion years ago. Depending on how slowly or quickly our early planet assembled from the ...

Artist's impression of planets forming around a young star. New, very precise measurements of krypton isotopes from deep in the Earth show that water, carbon and other volatile materials were ...

The Earth formed relatively quickly from the cloud of dust and gas around the Sun, trapping water and gases in the planet's mantle, according to research published Dec. 5 in the journal Nature. Apart ...