Topic: sky

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Mars Loops the Loop: What is retrograde motion?

What is retrograde motion and why does a planet like Mars appear to change directions in the night sky? Is it playfully looping about in its orbit around the sun or is something less strange going on? From episode 2 o...

Mexico City International Airport from a drone’s-eye view

Here's something we don't get to see everyday: a drone flying around the runways of an international airport. In close contact with the control tower and pilots, Mexico City-based drone photo and video company Postand...

Albuquerque International Balloon Fiesta 2014 Time Lapse

Every year the city of Albuquerque hosts the largest hot air balloon event in the world, the Albuquerque International Balloon Fiesta. Each morning begins very early as a group of 6-12 hot air balloons known as Da...

Minute Physics: Why Is The Sun Yellow and The Sky Blue?

Why is the sun yellow and the sky blue? Why can we see the stars at night? Why is space black? And why is the sky more red, orange, and even pink at sunset? In this Minute Physics episode, we leap into "the grand ball...

How do we study the stars & how do we measure extreme distances?

How can we know so much about other galaxies? What are they made of? How big are they? How far away are they from Earth? "Want to know the secrets of the universe? Just follow the light." These two TED Eds fro...

It’s Okay to Be Smart: Why Do Clouds Stay Up?

Clouds are filled with so many water droplets that they're actually heavy... like 100 elephants heavy or a 747 airplane heavy! So why don't clouds fall out of the sky? It's Okay to Be Smart's Joe Hanson explains every...

Stormscapes: A time lapse of storm clouds & mesocyclones

Shot in Wyoming and South Dakota by photographer Nicolaus Wegner in the summer of 2013, this video for National Geographic is an incredible look into the thunderstorms and mesocyclones -- powerful vortexes of air wit...

Sounds of Paragliding: The aerobatic paragliding of Théo de Blic

A first big flying experience at 12 years old set French national acrobatic paragliding team member Théo de Blic into a life that would be spent high in the air. The Sounds of Paragliding captures his love for aerobat...

Full Moon Silhouettes: A full moon rises in real time

This is not a time lapse video. Rising in real time over Wellington, New Zealand, the moon appears huge (and perhaps surprisingly speedy) as it was captured by photographer Mark Gee in January of 2013. In celebration ...

Flying in a F-16 Fighter Jet with the USAF Thunderbirds

What's it like to suit up in a g-suit and oxygen mask to fly in a supersonic F-16 fighter jet? Photographer Blair Bunting found out when he got the rare and thrilling opportunity to fly with the United States Air Forc...

This is NOT timelapse: the Aurora Borealis in real time

This breathtaking video of the Aurora Borealis is not a timelapse video — this is what it looks like in real time. It was filmed in Yellowknife, Northwest Territories, Canada by astro-ph...

Minute Physics: Why The Full Moon is Better in Winter

Minute Physics on Why The Full Moon is Better in Winter. Bonus: great visualizations explaining Earth’s relationship to our sun and moon throughout the year. via jtotheizzoe.

Midday Traffic Time Collapsed and Reorganized by Color

Above, filmmaker Cy Kuckenbaker's Midday Traffic Time Collapsed and Reorganized by Color: San Diego Study #3. But wait… here’s the real video of this freeway. So what’s going ...

What did Mars look like 4 billion years ago?

The team at NASA’s Conceptual Image Lab has an idea of what Mars looked like 4 billion years ago based on the existing evidence: Billions of years ago when the Red Planet was young, it appears to have had a t...

Albuquerque’s 2013 Balloon Fiesta time lapsed

Watch this Roadtrippers time lapse video of Albuquerque’s 42nd annual International Balloon Fiesta, a nine day event where over 700 balloons take off into the sky. Full screen, HD-ready stuff.  Then watch more...

What would the moon look like if it was as close as the ISS?

What would the moon look like if it was at the same distance from Earth as the International Space Station? (That’s 240-ish miles above our planet instead of its usual 238,900 miles awa...

Sesame Street: That’s about the size

Classic Sesame Street time: That’s about the size.

If the Moon were replaced with some of our planets…

These two classic viral videos by YouTuber yetipc1 illustrate what the planets would look like if they replaced our moon in the sky. Above, daytime, and night below: In the archives, another classic: Star Size Comp...

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