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Can Humanity Stop A Planet-Killing Asteroid?

Adults Astronomy Science Space

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.

Star Personalities

Youth Science Space Youth 110...

In this episode, Sabrina chats about their difference and tells us what those differences mean.

Are Asteroids Dangerous?

Kids Astronomy Kids 125 Kids 130...

A sample of Bennu could tell us exactly how threatening this near-Earth asteroid is, and how we defend ourselves against it.

Stars, Constellations, and More

Children Astronomy EE1 EE2...

By the end of this science lesson, students will be able to describe the characteristics of stars and constellations.

How Big Is Space?

Kids Astronomy Facts Kids 125...

A NASA scientist explains what we know — and don’t know — about the size of the cosmos.

How 2000 Weavers Got Us To The Moon

Adults Engineering History Space...

In the 1960s, NASA’s engineers were building the Apollo spacecraft. But they ran into a major problem that almost prevented them from getting to the moon. To solve it, they brought in some unexpected help: expert weavers.

Orbits Are Odd

Youth Astronomy Science Space...

Did you know that there is a massive black hole at the center of our galaxy? Today, Sabrina talks about this and more.

Everything Revolves Around You

Youth Science Space World...

Today Sabrina talks to us about how gravity and velocity works.

Rocks From Space!

Youth Astronomy Science Space...

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 Science Space...

Sabrina chats about how stars glow and how astronomers judge their brightness. Also, she talks about a really, really, really big star.

What Is A Blue Moon?

Youth Astronomy Space Youth 110...

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 Education Games...

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 Science Space

"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."

Surprising Science: Big Moon?

Youth Science Space Youth 110...

If you look at the Moon in the night sky and think it appears larger near the horizon, you're experiencing the Moon illusion.

How to Build in Space — for Life on Earth | Ariel Ekblaw | TED

Adults Architecture Innovation Science...

Is space the “final frontier” — or the perfect place to revolutionize life on Earth?

How this helicopter survived 1004 days on Mars, then disappeared...

Adults Innovation Space Survival...

How a helicopter built of phone parts survived Mars for 3 years.

Big Moon?

Youth Astronomy Psychology Space...

Despite appearances, the Moon remains the same size, and your brain is simply playing tricks on you.

The Future Of Space Exploration

Youth Future Gadgets Science...

Here's five possibilities that might actually become reality in the next 50 years.

The Biggest Volcano Ever Is In Space!

Kids Astronomy Geology Kids 110...

Jessi and Sam the Bat talk about the biggest volcano ever that we know of. And it's not on Earth.

Over (To) The Moon

Youth Astronomy Science Space...

Sabrina chats with us about what it takes to get to the moon!

The Great Escape

Youth Education Physics Space...

Sabrina talks about gravity, escape velocity, and how gravity works between two objects.