Astronomers found an iron bar in the Ring Nebula that doesn't match any known stellar phenomenon. Scientists can't explain ...

Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in the public imagination. The amount of magnetic energy packed into these tiny, shiny ...

The exoplanets WASP-76 b and WASP-121 b are already known to be peculiar places, but a new discovery has raised even more questions about the composition of these celestial bodies. Astronomers ...

Do you know what the most abundant element on Earth really is? You might be surprised to know that the answer depends on ...

What was iron doing at life's birth? : life without oxygen -- Catastrophe : the arrival of oxygen -- Grabbing and storing : controlling iron -- The smallest living magnets : avoiding oxygen -- ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...