Galaxies are often thought of as sparkling with stars, but they also contain gas and dust. Now, a team led by astronomers from the University of California, Los Angeles, has used new data to show that stars are responsible for producing dust on galactic scales.
This research was published in the Astrophysical Journal Letters.
Dust is important because it is a key component of rocky planets such as Earth. In the image above, the galaxy II Zw 40, dust (shown in yellow) is strongly associated with clusters of stars (shown in orange).
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.