A monarch butterfly’s body can reveal where the caterpillar originated from.
Isotope mapping reveals information about a monarch butterfly’s point of origin. Using strontium isotopes helps pinpoint more precise locations.
The ruins of the Temple of Victory in Himera, which was constructed to commemorate the first battle in 480 B.C.
Are the descriptions of war passed down by ancient historians accurate? A site in Sicily provided a rare chance to fact-check stories told about two battles from more than 2,400 years ago.
Leaded petrol hasn’t been used since 2002, but new research found traces of it end up back in the air after bushfires.
Two planetary bodies colliding.
The Earth and the Moon were long thought to be virtually identical in composition. Now we know they are not.
Iranian president Hassan Rouhani (right) inspects the country’s nuclear facilities in April 2019.
Iranian Presidential Office/EPA
Iran has announced it will breach the limits on uranium enrichment agreed under the 2015 nuclear deal, after the US turned its back on the agreement. What does that mean for Iran’s nuclear program?
Researchers have identified 3,000 radioactive isotopes – and predict 4,000 more are out there.
Alongside their famous dangers, radioactive materials have many beneficial uses. With as many more predicted as have already been discovered, nuclear physicists are searching for more isotopes.
A fossil tooth contains isotopes that offer clues of aridification.
A study has found that a local event rather than a global shift in climate caused the mass extinction in South Africa.
Straw-necked ibis gather to breed.
Bird feathers can tell us a lot about their owners and the places they visit.
Through the looking glass: nuclear medicine gives us a unique perspective.
Technetium-99m is the world’s most commonly used medical isotope, used for over 30 million medical diagnostic procedures annually. But recent years have seen severe worldwide shortages and price spikes…
Some of the isotopes we find here on Earth were created in supernova explosions like this one.
If you’ve ever studied a periodic table of the elements (see below), you’re probably already aware that this table reveals a great deal about the chemical properties of the atoms that make up our world…