News tagged with light elements

Dense hydrogen in a new light

(Phys.org) —Hydrogen is the most abundant element in the universe. The way it responds under extreme pressures and temperatures is crucial to our understanding of matter and the nature of hydrogen-rich ...

Jun 03, 2013 4.9 / 5 (34) 3 | with audio podcast

Earth's outer core deprived of oxygen: study

The composition of the Earth's core remains a mystery. Scientists know that the liquid outer core consists mainly of iron, but it is believed that small amounts of some other elements are present as well. Oxygen ...

Nov 23, 2011 3.9 / 5 (15) 12 | with audio podcast

The earliest stars in the Universe

(PhysOrg.com) -- Matter in the universe after the big bang consisted almost entirely of hydrogen and helium atoms. Only later, after undergoing fusion reactions in the nuclear furnaces of stars, did these ...

Dec 19, 2011 4.4 / 5 (10) 15 | with audio podcast

Hubble sees cosmic riches

(Phys.org)—This dazzling image shows the globular cluster Messier 69, or M 69 for short, as viewed through the NASA/ESA Hubble Space Telescope. Globular clusters are dense collections of old stars. In this ...

Oct 07, 2012 5 / 5 (8) 0 | with audio podcast

Cutting light with a comb

(Phys.org)—Quantum physicists from ETH Zurich have discovered special properties in a laser, thanks to which portable devices can be built to analyse gases and liquids accurately and reliably in the future.

Dec 14, 2012 5 / 5 (8) 0 | with audio podcast