Researchers studying a distant spiral galaxy have found that large-scale, ordered magnetic fields existed far earlier in cosmic history than standard theories predicted, forcing a fresh look at how ...

Magnetic fields that stretch across thousands of light-years should take a very long time to organize. Standard dynamo theory ...

The ALICE Collaboration takes a step further in addressing the question of whether a quark–gluon plasma can be formed in proton–proton and proton–nucleus collisions. In the first few microseconds ...

Astronomers discover PicII‑503, a 14-billion-year-old star carrying primordial elements, challenging theories of early star ...

How fast can a galaxy build ordered magnetic fields spanning thousands of light-years? Existing theories say several billion years, but observations of galaxies in our universe imply shorter ...

A new data release more than doubles the number of gravitational-wave candidate events—and reveals unexpected complexities of merging black holes ...

T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. It was 2018, and the discovery had just ...

As we explore more of the universe, the physical impacts of living in microgravity continue to be one of the primary obstacles to long-term space trav.

Still in its original galaxy, a rare holdout from the second generation of stars sheds new light on the origins of the elements—and how massive supernovae reshaped the cosmos ...