Researchers say they've discovered the largest known object in the universe, a galactic superstructure called Quipu.

Gum 41, a radiant nebula in the southern sky, glows due to powerful radiation from a pair of massive stars at its core. This ...

The halo, known as an Einstein ring, encircles a galaxy 590 million light-years away, considered close by cosmic standards. A light-year is 5.8 trillion miles. Telescopes spy a monster radio jet ...

Explore the latest company news, creator and artist profiles, culture and trends analyses, and behind-the-scenes insights on the YouTube Official Blog.