"When I started out, I wanted to be really famous," Janis Ian says in the trailer for her upcoming documentary. "So naive." In the exclusive clip above, Varda Bar-Kar's Janis Ian: Breaking Silence ...

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is ...

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