Cosmology is already a complicated field of study, so switching up the variables is extra rough.

Read the full transcript of this episode. In the year 1823, a doctor named Wilhelm Olbers looked out at the night sky and wondered: if we're surrounded by so many stars, why is the night sky so dark?

By observing the brightness of distant dying stars, astronomers have long come to believe that the expansion of the universe ...

Researchers have moved one step closer to solving one of science’s greatest mysteries—why the universe is filled with matter instead of nothing. Scientists at Indiana University have made a major ...

In 2002, two astronomers analyzing data from more than 200,000 galaxies decided to answer a question nobody asked: if you ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole. Parallels in the physics of the universe and that of black holes have led ...