Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure iron, meaning lighter elements exist in the core, as well. In particular, it's ...

Warning: This graphic requires JavaScript. Please enable JavaScript for the best experience. Updated March 11 at 2:18 p.m. A third round of stimulus checks, part of ...

As of December 2025, there is no approved fourth federal stimulus check. Former President Donald Trump has proposed a new round of payments, but this has not been approved by Congress. Arizona has ...

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Mary is an associate editor covering technology, culture and everything in between. She recently graduated from the University of North Carolina at Chapel Hill, where she served as an editor at The ...

Everything around us is built from sets of chemical elements. From the air we breathe to the jewelry we wear. All of these elements can be found on the periodic table that we’ve all had a chance to ...

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Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

These "nucleation" events are the first steps toward freezing. What they found was surprising: silicon and sulphur, elements often assumed to be present in the core, actually slow down the freezing ...

When studying rare earth elements, noticing a violet glow in the lab used to be a sign for scientists that something intriguing lay on the other side of an impenetrable wall. That glow belonged to ...