Skip to main content
Back to Show
PBS Space Time

The Strange Universe of Gravitational Lensing

In the world of our mind’s eye, light travels in a straight line. In reality, spacetime is deflected and magnified through the lens of gravity. Find out how this works and what it allows us to learn about our universe in this episode of Space Time.

Support Provided By
Season
Citizen Science
10:02
The future of science is you.
Suicide Space Robots
6:00
Let’s take a moment to remember the selfless sacrifices made by some robotic explorers.
Zero-Point Energy Demystified
9:45
Let’s talk about the mysterious zero-point energy and what it really can and can’t do.
The Vacuum Catastrophe
9:17
If quantum field theory is right about vacuum energy, our universe shouldn't exist.
The Missing Mass Mystery
11:02
Astronomers haven't been able to find up to half of the baryonic matter in the universe.
The Nature of Nothing
11:29
It turns out that "nothing" is one of the most interesting somethings in all of physics.
Absolute Cold
7:04
Can we ever achieve absolute cold?
When Quasars When Quasars Collide STJC
10:22
So what happens when two Super Massive Black Holes collide?
Are the Fundamental Constants Changing?
11:12
Recent findings suggest that the fundamental constants may not be as stable as we assumed.
The Future of Space Telescopes
10:34
Some incredible technologies help us peer deeper and more sharply into space time.
Neutron Stars Collide in New LIGO Signal?
11:27
LIGO may have just detected gravitational waves from the collision of two Neutron Stars.
White Holes
12:25
Black holes are very well known but... What is a White Hole?
Active loading indicator