On This Day – July 08 : Astrophysicist Jason Cardelli announced that he had detected thallium (Tl) and lead (Pb) in interstellar gas on this day in 1994

Description

Interstellar space refers to the areas between star systems within a galaxy. It varies hugely in composition, and contains atomic, molecular and ionic particles as well as cosmic radiation. Cardelli used spectroscopy and the scattered-light characteristics to identify the elements within.

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group work, working independently

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ADDITIONAL INFORMATION

What happened today in chemistry? Explore 366 days of chemistry history at On This Day in Chemistry, an RSC Learn Chemistry site. rsc.li/chemistry-calendar