1. "' Elephant trunks "'are formations of interstellar matter found in space. 2. He served as director of binary and variable stars, stellar rotation and interstellar matter . 3. Interstellar matter , considered dense in an astronomical context, is at high vacuum by laboratory standards.4. A star is born through the gradual gravitational collapse of a cloud of interstellar matter . 5. For this discovery they were awarded the plasmas to replicate and characterize unidentified interstellar matter . 6. It can be especially useful in studying matter not easily produced in laboratories, such as interstellar matter . 7. He authored theoretical papers on flare stars ( predicted negative infrared flares ), interstellar matter , binary stars. 8. Such molecules were discovered to make up about half of the interstellar matter , the rest being mainly atomic hydrogen. 9. Despite her enthusiasm for interstellar matter as objets d'art, Ms . Florian is not bullish on meteorites as investments. 10. He is famous for his work on lithium, beryllium and boron, light elements formed by the irradiation of interstellar matter .