strontium
Scientists Traced a Wooly Mammoth's Lifetime Journey, and It's Astonishing
Researchers found the mammoth walked a distance equal to nearly twice the circumference of Earth using isotopes of strontium and oxygen.
Want to Know Who Partied at Stonehenge? Look at the Pig Bones
Some 4,500 years ago, the ticket to a megalithic party was a pig from your local farm.
The New Atomic Clock Will Be Accurate for 15 Billion Years
That's almost the age of the universe itself.
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Breakfast Cereal Could Help Clean Up Radioactive Spills
When planted in post-nuclear spill soil, oats can strip contaminants from the toxic sludge.
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