cosmology

Newfound Star May Be Oldest in the Universe

The ultimate age barrier has been broken. The oldest living star in the entire universe may have been discovered—one formed only one or two hundred million years after the Big Bang itself. The ancient star, born some 13.6 billion years ...

Astronomers Get First Glimpse of Cosmic Web

Astronomers have for the first time captured a glimpse of the vast, web-like network of diffuse gas that links all of the galaxies in the cosmos. Leading cosmological theories suggest that galaxies are cocooned within gigantic, wispy filaments of gas. ...

Photo: Galaxy Crash Revealed First Time in X-Rays

For the first time astronomers have been able to peer into the heart of a galaxy 60 million light years  from Earth and observe, via x-rays, the remnants of a titanic collision between a long dead dwarf galaxy and much larger ...

Photo: Galaxy Crash Revealed First Time in X-Rays

For the first time astronomers have been able to peer into the heart of a galaxy 60 million light years  from Earth and observe, via x-rays, the remnants of a titanic collision between a long dead dwarf galaxy and much larger ...