(from the article `Cosmos`) ...than hydrogen and helium—in some cases, less than 1 percent of the value possessed by the Sun. On the other hand, the youngest stars, which have ... A hint of the processes of the formation and evolution of the Galaxy is contained in the general correlation between the spatial location of a star ... ...
Found on
http://www.britannica.com/eb/a-z/h/29
In astronomical terms, any element heavier than helium. Astronomers also refer to such elements as 'metals' (although many, such as carbon, are not). Heavy elements, which are essential for the formation of planetary systems (see heavy element concentration, related to the occurrence of planets) and...
Found on
http://www.daviddarling.info/encyclopedia/H/heavyel.html
No exact match found.
