Scientists studying a mysterious effect called cosmic birefringence—a subtle twist in the polarization of the universe’s oldest light—have developed a new way to reduce uncertainty in how it’s ...
Astronomers have discovered a flattened structure of matter around the Milky Way that explains the unusual motion of nearby galaxies.
New high-resolution radio observations from the Australia Telescope Compact Array have exposed fine-scale magnetic structure inside the Vela X pulsar wind nebula, revealing a prominent curved filament ...