ESA’s orbiting gamma-ray observatory, Integral, has made a pioneering unequivocal discovery of radioactive iron-60 in our galaxy that provides powerful insight into the workings of massive stars that ...

Scientists have adopted the role of "cosmic archaeologists" to discover a rare, iron-deficient second-generation star — essentially a fossil record of our universe's chemical evolution. Just as ...

"Discoveries like this are cosmic archaeology, uncovering rare stellar fossils that preserve the fingerprints of the universe’s first stars." When you purchase through links on our site, we may earn ...

Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron—less than 1/40,000th of the sun. This signature makes it the clearest example of a star within a primordial ...