Stellar feedback as a research area investigates how energy, momentum, and chemically enriched material injected by stars regulate the formation and evolution of galaxies and the interstellar medium (ISM). It encompasses processes such as photoionization, stellar winds, radiation pressure, and supernova explosions, and their roles in heating, ionizing, and dispersing gas, driving turbulence, launching galactic outflows, and quenching or triggering star formation. The field combines analytical models, high-resolution simulations, and multiwavelength observations to quantify feedback efficiencies, coupling mechanisms to the ISM, and the impact on galaxy scaling relations, metal enrichment, and the broader baryon cycle in cosmological structure formation.
Astronomers have revealed new details about how young stars shape their galactic surroundings in a new study. Researchers analyzed about 18,000 star-forming regions in nearby spiral galaxies using data from powerful instruments ...
Astronomy
Jun 17, 2026
0
19
One of the most puzzling findings from the JWST's observations of the early universe is the size of black holes. According to our understanding of black hole growth, these early black holes are far more massive than expected. ...
Astronomy
May 20, 2026
2
69
Astronomers may have found an explanation for one of the biggest mysteries revealed by the James Webb Space Telescope (JWST): why so many galaxies in the early universe appear unexpectedly bright in ultraviolet light. The ...
Astronomers using the NASA/ESA/CSA James Webb Space Telescope together with the NASA/ESA Hubble Space Telescope have looked deeply at thousands of young star clusters in four nearby galaxies, studying clusters at different ...
Astronomy
May 6, 2026
0
73
An international team of astronomers has analyzed the data from the James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array (ALMA) to investigate giant molecular clouds in nearby galaxies. The new ...
This shimmering region of star-formation, a close-up of the Trifid Nebula about 5,000 light-years from Earth, was captured in intricate detail by NASA's Hubble Space Telescope. The colors in Hubble's visible light image, ...
Astronomy
Apr 20, 2026
0
41
European astronomers have used the Atacama Large Millimeter Array (ALMA) and the James Webb Space Telescope (JWST) to observe a recently discovered giant disk galaxy known as ADF22.1. Results of the new observations, published ...
New Curtin University-led research has used a radio telescope that spans Earth to snap images that measure the immense power of jets from black holes, confirming scientists' theories of how black holes help shape the structure ...
Astronomy
Apr 16, 2026
0
57
Using the James Webb Space Telescope (JWST), an international team of astronomers has observed a nearby spiral galaxy known as NGC 628. Results of the observational campaign, published March 10 on the arXiv pre-print server, ...
This image, taken with ESO's Very Large Telescope (VLT), seems to have captured a cosmic hawk as it spans its wings. While the dark clouds in the middle of the image make up the head and body of the bird of prey, the filaments ...
Astronomy
Mar 3, 2026
0
28
