This image includes ultraviolet and visible data from Hubble & Infrared with Webb. Hubble and Webb have different strengths and capabilities that complement each other. Hubble observes mainly in visible and ultraviolet light, while Webb observes mainly in infrared light.
This means that Hubble can see stars and galaxies as they appear to us, while Webb can see through dust and gas to reveal hidden structures and objects. Hubble can also study objects that are very bright, such as supernovae and quasars, whilst Webb can study objects that are very faint, such as the first stars and galaxies that formed after the Big Bang.
By combining their observations, Hubble and Webb can provide a more complete picture of the cosmos than either one alone. For example, they can study how stars and planets form and evolve, how galaxies grow and interact, and how the universe expands and changes over time.
They can also test theories of physics and cosmology, such as dark matter, dark energy, and gravity.
Hubble and Webb, along with ground-based radio telescopes, provide complementary views of M74. Hubble's sharp vision at UV and visible wavelengths allows it to see HII regions, whereas Webb's infrared sensitivity allows it to see through dust and gas. ALMA can see even longer wavelengths of light, providing a complete picture of the galaxy.
By combining data from these different telescopes, scientists can learn more about M74 and other galaxies than they could from any single observatory.
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