Dimethylmercury ((CH3)2Hg) is an organomercury compound. This colorless liquid is one of the strongest known neurotoxins. It is described as having a slightly sweet smell, although inhaling enough vapor to detect its odor would be hazardous.
The formation of a star begins with gravitational instability within a molecular cloud, caused by regions of higher density-often triggered by shock-waves from nearby supernovae (massive stellar explosions), the collision of different molecular clouds, or the collision of galaxies (as in a starburst galaxy).
The Submillimeter Wave Astronomy Satellite(SWAS). Star Formation and the Cooling of Molecular Clouds. Star formation is governed by two dominant influences: (1) gravity, the universal force that causes all matter to attract and (2) heat.