Scientists are rethinking how young galaxies formed their magnetic fields
Magnetic fields that stretch across thousands of light-years should take a very long time to organize. Standard dynamo…
Nearly invisible galaxy may be built mostly of dark matter, Hubble finds
A tight clump of four star clusters sits in the Perseus galaxy cluster, and at first glance it…
JWST found a ‘dead’ galaxy that quit making stars billions of years ago
Three billion years after the Big Bang, a massive galaxy already looked like it had run out of…