Can Humanity Stop A Planet-Killing Asteroid?
Adults Astronomy
Some killer asteroids were found only days before flyby. If they had struck Earth, the power of thousands of nuclear bombs would have flattened cities and killed millions.
Spaced Out
Youth Astronomy
In this episode, Sabrina gives us some perspective on this whole universe thing and how we fit into it.
Stars, Constellations, and More
Astronomy
By the end of this science lesson, students will be able to describe the characteristics of stars and constellations.
Are Asteroids Dangerous?
Kids Astronomy
A sample of Bennu could tell us exactly how threatening this near-Earth asteroid is, and how we defend ourselves against it.
The Earth's Rotation
Astronomy
By the end of this science lesson, students will be able to connect the position of the Earth to day and night, and recognize that different parts of the world experience day and night at different times.
How Big Is Space?
Kids Astronomy
A NASA scientist explains what we know — and don’t know — about the size of the cosmos.
Orbits Are Odd
Youth Astronomy
Did you know that there is a massive black hole at the center of our galaxy? Today, Sabrina talks about this and more.
Rocks From Space!
Youth Astronomy
With so many objects floating around in space, we’ve got you covered on knowing the difference between all of the smaller celestial bodies that orbit the Sun.
Glow On
Youth Astronomy
Sabrina chats about how stars glow and how astronomers judge their brightness. Also, she talks about a really, really, really big star.
The Largest Object in the Universe Breaks the Laws of Physics
Adults Astronomy
In March 2025, astronomers announced the "largest cosmic structure discovered to date". They called it Quipu. And Quipu is just the latest entry in a list of structures that are too big for cosmologists to explain without revisiting one of the most fundamental assumptions they have about the universe.
What Is A Blue Moon?
Youth Astronomy
You may be familiar with the Moon turning red during lunar eclipses, but did you know that it can sometimes appear to have a blue hue?
Seeing Stars
Youth Astronomy
Today, let's play a game of "Star or Not a Star" to learn a little more about everything that's up there.
Brian Cox breaks down the most mysterious scale in the cosmos
Adults Astronomy
"It's a very, very beautiful calculation, but it's the best example I know of the relationship between these rather abstract quantities perhaps and something that you can look at in a telescope."
How much would it cost to buy the Sun? - Cella Wright
Adults Astronomy
Dig into the monetary value of the Sun and how important it is as our energy source as Daedalus contemplates buying it.
Big Moon?
Youth Astronomy
Despite appearances, the Moon remains the same size, and your brain is simply playing tricks on you.
The Biggest Volcano Ever Is In Space!
Kids Astronomy
Jessi and Sam the Bat talk about the biggest volcano ever that we know of. And it's not on Earth.
Which Planet Has The Strongest Quakes?
Adults Astronomy
Earth might be the only planet with tectonic plates, but it is not the only one with quakes because quakes can be caused by a ton of different things in the solar system.
Why are there two tides a day? - Elise Cutts
Adults Astronomy
Dig into how the Sun and Moon are responsible for the tides on Earth, and what this force looks like on other celestial bodies.
Which Planet Has The Strongest Quakes?
Adults Astronomy
Earth might be the only planet with tectonic plates, but it is not the only one with quakes because quakes can be caused by a ton of different things in the solar system.
Over (To) The Moon
Youth Astronomy
Sabrina chats with us about what it takes to get to the moon!
Seasons And The Sun
Youth Astronomy
Sabrina talks about how the Earth's tilt is responsible for Winter, Spring, Summer, and Fall.