Seven cities dispute the right of having given birth to the immortal Homer, and seven men claim the honor of having discovered cadmium. A learned German has tried to show that Homer was a myth.

The scientists described their findings in “20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction,” which was published in Nature ...

Snow in the Rockies now silently carries toxic metals from mines, revealing long-range pollution by winter storms.

Cadmium, arsenic, lead and mercury are toxic substances that, although present in nature, have reached worrying levels in ...

In nature, uranium isotopes are typically found in radioactive equilibrium (i.e. the ... In sufficient amounts, uranium that is ingested or inhaled can be harmful because of its chemical toxicity.