News tagged with iron

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The rise and fall of oxygen

How long has Earth's atmosphere included oxygen? A recent paper suggests low levels of oxygen appeared in the atmosphere approximately 2.95 billion years ago. That's about 550 million years earlier than p ...

Dec 11, 2013
4.8 / 5 (4) 0

Image: Hot gas sloshing in a galactic cauldron

(Phys.org) —Galaxies are social beasts that are mostly found in groups or clusters – large assemblies of galaxies that are permeated by even larger amounts of diffuse gas. With temperatures of 10 million ...

Nov 19, 2013
5 / 5 (5) 18 | with audio podcast

Suzaku study points to early cosmic 'seeding'

(Phys.org) —Most of the universe's heavy elements, including the iron central to life itself, formed early in cosmic history and spread throughout the universe, according to a new study of the Perseus Galaxy ...

Oct 31, 2013
4.5 / 5 (12) 1 | with audio podcast