Season 1

Video thumbnail: PBS Space Time Why is the Earth Round and the Milky Way Flat?

PBS Space Time

Why is the Earth Round and the Milky Way Flat?

Our universe is not a very diverse place when it comes to shapes.

Why is the Earth Round and the Milky Way Flat?

Video thumbnail: PBS Space Time What’s Wrong With the Big Bang Theory?

PBS Space Time

What’s Wrong With the Big Bang Theory?

We continue our search for a grand unifying theory of the Big Bang!

What’s Wrong With the Big Bang Theory?

Video thumbnail: PBS Space Time Why the Big Bang Definitely Happened

PBS Space Time

Why the Big Bang Definitely Happened

The actual moment of ‘the Big Bang’ is still a bit of a grey area within physics.

Why the Big Bang Definitely Happened

Video thumbnail: PBS Space Time Will Mars or Venus Kill You First?

PBS Space Time

Will Mars or Venus Kill You First?

Our neighboring planets are not exactly the most hospitable places.

Will Mars or Venus Kill You First?

Video thumbnail: PBS Space Time The Origin of Matter and Time

PBS Space Time

The Origin of Matter and Time

Time to redefine our preconceived notions about mass and time.

The Origin of Matter and Time

Video thumbnail: PBS Space Time When Time Breaks Down

PBS Space Time

When Time Breaks Down

We learned how motion gives matter its mass, but how does motion affect time?

When Time Breaks Down

Video thumbnail: PBS Space Time The Higgs Mechanism Explained

PBS Space Time

The Higgs Mechanism Explained

What is the Higgs field and why is it a fundamental part of our universe?

The Higgs Mechanism Explained

Video thumbnail: PBS Space Time What Happens At The Edge Of The Universe?

PBS Space Time

What Happens At The Edge Of The Universe?

Lots of people believe the Universe is infinite, but are they wrong?

What Happens At The Edge Of The Universe?

Video thumbnail: PBS Space Time Do Events Inside Black Holes Happen?

PBS Space Time

Do Events Inside Black Holes Happen?

Black holes are mammoths in the world of science AND sci-fi.

Do Events Inside Black Holes Happen?

Video thumbnail: PBS Space Time What Physics Teachers Get Wrong About Tides!

PBS Space Time

What Physics Teachers Get Wrong About Tides!

We all know tides have something to do with gravity from the Moon and Sun.

What Physics Teachers Get Wrong About Tides!

Video thumbnail: PBS Space Time Can You Trust Your Eyes in Spacetime?

PBS Space Time

Can You Trust Your Eyes in Spacetime?

This week on Spacetime, we take a detour into how geometry works in spacetime.

Can You Trust Your Eyes in Spacetime?

Video thumbnail: PBS Space Time The Leap Second Explained

PBS Space Time

The Leap Second Explained

Every once in a while we add a second onto our days.

The Leap Second Explained

Video thumbnail: PBS Space Time Can a Circle Be a Straight Line?

PBS Space Time

Can a Circle Be a Straight Line?

General Relativity! Spacetime! And... Curved Lines?

Can a Circle Be a Straight Line?

Video thumbnail: PBS Space Time The Calendar, Australia & White Christmas

PBS Space Time

The Calendar, Australia & White Christmas

Southern and northern hemispheres experience opposite seasons... So could it happen?

The Calendar, Australia & White Christmas

Video thumbnail: PBS Space Time How to Signal Aliens

PBS Space Time

How to Signal Aliens

Everyone has their own opinion as to whether or not aliens exist.

How to Signal Aliens

Video thumbnail: PBS Space Time Is Gravity An Illusion?

PBS Space Time

Is Gravity An Illusion?

Most of us take gravity as an assumed part of our living realities, but why?

Is Gravity An Illusion?

Video thumbnail: PBS Space Time Habitable Exoplanets Debunked!

PBS Space Time

Habitable Exoplanets Debunked!

Kepler 186f rekindled our hopes and dreams of colonizing space.

Habitable Exoplanets Debunked!