The Big Bang theory describes the expansion of the universe, not its origin, and is not an explosion in pre-existing space, but rather the unfolding of matter, energy, time, and space itself. Evidence ...

In this series I give you an overview of important ideas in the area of cosmology. This video is the second in the series, and focuses on dark matter. Using various detectors and research methods, ...

For centuries, cartographers have sought to map Earth’s land masses and seas to better understand the world and their place in it. Now, astrophysicists have taken a major step toward doing the same ...

Not that long ago, most serious scientists considered cosmology a branch of philosophy. But in recent decades, observations by the Hubble Space Telescope and probes of the microwave radiation left ...

Let’s say you have a baby. Maybe you really do, maybe you don’t. But Dan Scolnic, a cosmologist at the University of Chicago, does have one, and perhaps that's why a hypothetical baby helps him ...

For thousands of years, humans have watched the stars and wondered how the universe came to be. But it wasn't until the years of World War I that researchers developed the first observational ...

Cosmology must seem odd to scientists in other fields. More and more accurate data about the distant Universe are being generated by high-tech observational techniques, giving rise to an era of ...

Dr. Frank is an astrophysicist at the University of Rochester. Dr. Gleiser is a theoretical physicist at Dartmouth College. Not long after the James Webb Space Telescope began beaming back from outer ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of "Ask a Spaceman" and "Space Radio," and author of "How to Die in Space." Sutter contributed this article to ...