News tagged with radioactive

Earth's gold came from colliding dead stars

We value gold for many reasons: its beauty, its usefulness as jewelry, and its rarity. Gold is rare on Earth in part because it's also rare in the universe. Unlike elements like carbon or iron, it cannot ...

Jul 17, 2013
4.7 / 5 (48) 90 | with audio podcast

Toxic radiation 'in groundwater' at Fukushima

Toxic radioactive substances have once again been detected in groundwater at the crippled Fukushima nuclear plant, its Japanese operator said on Sunday, the latest in a series of incidents at the tsunami-battered ...

Jul 07, 2013
3.2 / 5 (5) 3

Breakthrough: Sensors monitor cells at work

Transport proteins are responsible for moving materials such as nutrients and metabolic products through a cell's outer membrane, which seals and protects all living cells, to the cell's interior. These transported molecules ...

Jul 02, 2013
5 / 5 (1) 0 | with audio podcast

Exotic alloys for potential energy applications

The search for thermoelectrics, exotic materials that convert heat directly into electricity, has received a boost from researchers at the California Institute of Technology and the University of Tokyo, who have found the ...

Jun 27, 2013
4.5 / 5 (8) 0 | with audio podcast