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The James Webb Space Telescope (JWST) has found a galaxy in the early universe that's so massive, it shouldn't exist, posing a "significant challenge" to the standard model of cosmology, according to the study authors. The galaxy, called ZF-UDS-7329, contains more stars than the Milky Way , despite having formed only 800 million years into the universe's 13.8 billion-year life span. This means they were somehow born without dark matter seeding their formation, contrary to what the standard model of galaxy formation suggests. How this could have happened is unclear, but much like previous JWST discoveries of other inexplicably massive galaxies in the early universe , it threatens to upend our understanding of how the first matter in the universe formed. The researchers published their findings Feb. 14 in the journal Nature . Related: After 2 years in space, the James Webb telescope has broken cosmology. Can it be fixed? "Having these extremely massive ...

Astronomers have recorded a radio wave in the Milky Way galaxy for the first time, accompanied by an explosion of X-ray radiation. The Science Alert portal received this notification from the astronomer. literature Srinivas Kulkarni at the California Institute of Technology . The researchers suggested that the magnet SGR 1935 2154 was the source of radio waves. However, they differ in their magnetic field strengths, sometimes exceeding this parameter by thousands of times. A signal has been recorded that can answer the question about the origin of fast radio bursts (FRBs). This is a powerful radio signal from deep space – from galaxies, possibly millions of light-years away.When there are such explosion s, the energy released can be 500 million times higher than that of the sun. At the same time, such outbursts last less than 0.001 seconds and as a rule do not repeat again, so it is difficult for scientists to predict their occurrence to monitor and study in detail. ...