Webb space telescope looks beyond the bar to find a ‘treasure trove’

Such observations are very valuable to astronomers. This is because star formation forms the foundation of so many fields in astronomy, from the evolution of entire galaxies to the physics of the plasma that lies in between stars. Astronomers observe star formation in nearby galaxies hoping to kick-start major scientific advances with data from Webb.

The observations made using Webb build on studies that used other telescopes including the NASA/ESA Hubble Space Telescope and may of the most capable ground-based observatories in the world.

Webb has already taken images of 19 star-forming galaxies which astronomers could then combine with catalogues from other telescopes. For example, Hubble has a catalogue of 10,000 star clusters, the Very Large Telescope (VLT) was used to spectroscopically map 20,000 star-forming nebulae and the Atacama Large Millimeter/submillimeter Array (ALMA) has observations of 12,000 dark, dense molecular clouds.

These observations from different telescopes nearly span the entire spectrum of electromagnetic radiation. Astronomers can piece together all these observations to piece together the exact details of star formation.

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