In the UK, for GCSE science, you need to know the life cycles of stars and understand the processes behind them in terms of energy and forces.
Using masers as evolutionary probes in the G333 GMC (as well as some follow up work) Shari Breen, Simon Ellingsen, Ben Lewis, Melanie Johnston-Hollitt,
MOLECULAR GAS and DUST at the CENTER of the EGG NEBULA Jeremy Lim and Dinh-V-Trung (Institute of Astronomy & Astrophysics, Academia Sinica, Taiwan) Introduction.
