Massive stars influence their environments very strongly. Understanding these stars, and populations of them, from birth to death elucidates many key processes of our origins, such as the cycle of star birth and galaxy evolution, and the origin of the elements (especially those needed for life).
To study hot stars we use optical/infra-red spectroscopic and automated transient surveys. We use the observations to improve our theories on the role of stellar winds, internal mixing processes and binary interaction. In the future we want to move well out of our own Galaxy to probe other populations of massive stars. This will improve our models on the evolution of galaxies and colliding massive stars and their remnants.
Massive stars, star birth, galaxy evolution, hot stars, optical/infra-red spectroscopy, stellar winds, internal mixing, binary interaction
Now: VLT, WHT, HST, aLIGO
Future: ELT, JWST, transient survey machines