The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

Gravitational lenses have been used previously to resolve individual stars in the distant Universe. Using the microlensing of ...

Carbon, essential for life, journeys through space in a galactic recycling process, fueling star and planet formation.

The research group observed a galaxy nearly 6.5 billion light-years from Earth; when the universe was half its current age.