How to find massive stars…with bubbles!

In the “about” page of the Milky Way Project you can read in the describtion of bubbles: Bubbles are interesting places — they mark the locations where radiation from newly formed massive stars is impacting on the surrounding cloud material. But how can you find those stars if one bubble has sometimes hundreds or thousands… Continue reading How to find massive stars…with bubbles!

Reflection Nebulae, Bubbles and B-Type Stars

A reflection nebula is a cloud of interstellar dust that scatters the light of one star or many stars. The light of a reflection nebula does have similar spectra like the light it scatters. Because the stars are often blue, many reflection nebulae are blue and they are different from emission nebula, which have different… Continue reading Reflection Nebulae, Bubbles and B-Type Stars

Galaxies in the Mid-Infrared

The Mid-Infrared is good to study hot gas and dust in close galaxies. The Spitzer Space Telescope did already study the gas in close galaxies, like the spiral Andromeda galaxy or the dwarf galaxies Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC). Beside these very close galaxies, spitzer did image more distant galaxies, as… Continue reading Galaxies in the Mid-Infrared