Image: James Webb Space Telescope: NASA, Adam Ginsburg, University of Florida (UFl), Nazar Budaiev (UFl), Taehwa Yoo (UFl); Image Processing: Alyssa Pagan (STScI)
A colossal molecular cloud near the Milky Way’s center
Key Characteristics
- Location: In the central molecular zone (CMZ) of the Milky Way, near Sagittarius A*, the supermassive black hole.
- Size & Mass: One of the most massive objects in the galaxy, spanning about 150 light-years and containing roughly 3 million solar masses of gas and dust.
- Star Formation: Contains two main areas of intense star birth, Sgr B2(N) (North) and Sgr B2(M) (Main).
- Composition: Extremely rich in complex organic molecules (COMs), including ethyl formate, which would gives it that raspberry-like smell.
Scientific Significance
- Extreme Environment: Sgr B2 provides a unique laboratory to study star formation under the intense pressure, temperature, and turbulence of the Galactic center, mimicking conditions in other galaxies.
- Chemical Factory: Its high density and complex chemistry make it ideal for finding the building blocks of life in space.
Another Observation Platform
ALMA (Atacama Large Millimeter/submillimeter Array) map its molecular richness and dust structures in unprecedented detail.
Photo by James Webb Space Telescope (JWST). This image reveals young stars and dust, highlighting dense, dark areas too opaque even for Webb, showing where future stars are forming.