The Bubble Nebula really is a bubble. It is being blown into this shape by the bright star known as SAO20575, which sits just to the left of centre in this image. This is a giant star of 10–20 times the mass of the Sun.
#SolarSystem facts : The Solar System consists of the #Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. 99.86% of the system’s mass is in the Sun.
Electrospray ionization - Charged particles fly to counter electrod. Solvent evaporated so only analyte enters. Analyte flies into Mass analyzer. m/z ratio calculated for determination of molecular mass down to 0.01%.
Carina nebula. A portion of the Keyhole (the dark mass on the bottom), and on the top left, one of many dense molecular clouds of gas and dust being simultaneously compressed by the hot gases surrounding them, and ionized by the intense ultraviolet radiation from nearby stars. Within a few million years, most of the gases in the molecular cloud will be scattered and mixed with its surroundings. But stars now forming in its interior will gleam brightly, once their dusty shroud is removed.
Observations made with the APEX telescope reveal the cold dusty clouds from which stars form in the Carina Nebula. The nebula contains stars equivalent to over 25 000 Suns, and the total mass of gas and dust clouds is that of about 140 000 Suns. - Image Credit: ESO/APEX/T. Preibisch et al.