The discovery of the universe’s oldest stars, identified within our own Milky Way galaxy, marks a significant leap forward in our understanding of cosmic history. These ancient stars, formed shortly ...

Or parts of it are. The night sky may seem calm, even serene, but that masks events of a catastrophic and nearly unimaginable scale. Across the galaxy and even the cosmos itself, immense outbursts of ...

In the early 2000s, astronomers Karl Glazebrook and Ivan Baldry coordinated a project that used data from the 2dF Galaxy Redshift Survey, one of the largest visible galaxy surveys ever completed. This ...

When you look up at the night sky, it seems deep black with bright stars scattered across it. That familiar view leads many to assume that the universe itself must be black. But astronomers have asked ...

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 ...