What it meant was that he was looking at the oldest thing ever spotted -- an enormous star exploding 13 billion years ago. "At that point the age of the universe was only 600 million years," he said.

This space wallpaper of a galaxy cluster taken by the NASA/ESA Hubble Space Telescope gives a remarkable cross-section of the Universe, showing objects at different distances and stages in cosmic ...

What is the universe made of? This question has driven ... For astronomers, a common cosmic light bulb is a kind of exploding star called a Type Ia supernova. These are white dwarf stars which ...

In two new papers led by my colleague Patrick Kelly at the University of Minnesota, we have successfully used a new technique – involving light from an exploding star that arrived at Earth via ...