About 20 million years ago, in a galaxy not so far away, a large star exploded and sent elements representing the building blocks of life racing through space.
About a year ago, by chance, as the light it emitted reached Earth, a team of scientists in Israel observed it and for the first time collected data on the earliest stages from such an explosion, known as a supernova.
The picture they are putting together offers a detailed look at the origins of crucial elements around us, like the calcium in our teeth and the iron in our blood.
