Axions Would Solve a Major Problem in Physics

By Natalie Wolchover

In a new paper, physicists argue that axions could explain why the universe isn’t empty

Emergent Time

By Conor Purcell

In some versions of quantum gravity, time itself condenses into existence.

Strange Dark Matter Findings

By Carly Minsky

Scientists believe that mysterious dark matter is key to forming galaxies in the cosmos. Now, a recent series of bizarre findings threatens to undermine everything we think we know.

Dark Energy: Why Tinker with Gravity?

By Ethan Siegel

Of the 2 trillion galaxies contained within our observable Universe, 94% are already forever beyond our reach

Astronomers Spot 'Missing Link' Black Hole

By Reuters

Scientists have detected a mid-size black hole - considered the "missing link" in the understanding of these celestial brutes

How Far is the Edge of the Universe?

By Ethan Siegel

If you were to go as far out into space as you can imagine, what would you encounter?

Marcelo Gleiser: The Mystery of Knowing

By Shawn Radcliffe

One of the great unsolved problems of modern physics is coming up with a theory of everything

Dark Matter and Antimatter

By Carly Minsky

A Link Between Dark Matter and Antimatter Could Be Why the Universe Exists

Is Information the Fifth Form of Matter?

By Philip Perry

There is no dark matter. Instead, information has mass, physicist says

7:00 – FREE

Dark Gravity

With Neil deGrasse Tyson

Dark Matter, Dark Gravity, Ghost Particles, & the Essence of All Objects

Could the Universe be Curved, not Flat?

By Eleonora Di Valentino

In a curved universe, no matter which direction you travel in, you will end up at the starting point

5:00 – FREE

White holes

The other side of black holes. Do they exist?

7:00 – FREE

A Solar Model

With Kristen Bobst

Every solar system model you've seen is wrong.

No Dark Energy?

By Yonsei University

New evidence shows that the key assumption made in the discovery of dark energy is in error

26:00 – FREE

Who's Not Looking Through The Telescope Now?

With David Lorimer

Reversing history from Galileo's time, it is now the scientists who refuse to look through the telescope.

The Cosmic Web

By Becky Ferreira

Galaxies can move with each other across huge distances, and against the predictions of basic cosmological models.

What are intermediate-mass black holes?

By Jake Parks

We've detected puny, stellar-mass black holes. And we've detected giant, supermassive black holes. But what about those in the middle?

White holes: Do black holes have mirror images?

By Bill Andrews

These black hole opposites would spew energy, be impossible to enter, and might even answer some of the universe’s fundamental questions.

1:19:00 – FREE

Time is Real; Space is an Illusion

Lee Smolin on the Jim Rutt show.

The Universe Is Expanding Faster Than Expected

By Shawn Radcliffe

Discrepancies in measures of expansion may point to new physics

Mindful Thoughts for Stargazers

By Shawn Radcliffe

Astronomer and Ex-Zen Monk Mark Westmoquette's Book Review

4,000 Exoplanets Mapped in NASA Stunning Video

In less than 30 years, humanity has discovered more than 4,000 exoplanets

Star Stuff

By Shawn Radcliffe

Cecilia Payne-Gaposchkin on the Mystery of Stars

A Planetary Sense of Love

By Krista Tippett in On Being

Astronomer Natalie Batalha embodies a planetary sense of what “love” is and means.