Hubble trouble: Can you handle the cosmic challenge?

Astronomers and citizen scientists have uncovered the largest, most mysterious cosmic radio ring ever seen, twice the size of our galaxy, with intersecting rings that challenge what we know about ...

On February 25, 2024, XRISM used its Resolve instrument to observe the neutron star GX13+1, which is the core of a once larger star that has burned out. GX13+1 is a bright X-ray source. These X-rays ...

Did stars and galaxies give rise to black holes, or was it the other way around? New research may challenge ideas about how ...

Astronomers from the International Center for Radio Astronomy Research (ICRAR), in collaboration with international teams, have made a startling discovery about a new type of cosmic phenomenon. The ...