Topic: atmosphere

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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...

Everything You Need to Know About Planet Earth

When we wake up, eat breakfast, get ready for school or work, and head out the door, we may not be thinking about how incredibly unique our small, wet rock of a planet is. But the Earth is incredibly unique. Learn som...

How can we know anything about distant exoplanets?

How can we know the size, composition, and atmospheric makeup of distant exoplanets? NASA explains the details in this Alien Atmospheres video.  By observing periodic variations in the pare...

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...

The Top 5 Places to Look for Alien Life

Where might we find life in our solar system? Via skeptv, Scientific American Space Lab has a countdown for that: Top 5 Places to Look for Alien Life. Bonus — the video comes with additional reading material:  ...

Why So Many Cloud Types?

What are the names for the clouds you see when you look up in the sky? In this video from Nova PBS, learn about nimbus (rain), cumulus (heap), cirrus (curl), stratus (layer), and other types of clouds, and why both th...

It’s Okay to Be Smart: The Auroras

From PBS’ Digital Studios, It’s Okay to Be Smart's The Auroras, Earth’s Art Show! Learn More about the invisible forcefield — a magnetic field — that protects all life on Earth from space radia...

Meteorite Over Chelyabinsk, Russia Caught on a Dash Cam

…a very big meteor burned up over Chelyabinsk, a city in Russia just east of the Ural mountains, and about 1500 kilometers east of Moscow. The fireball was incredibly bright, rivaling...

Felix Baumgartner’s supersonic freefall from 128k’

After flying to an altitude of 39,045 meters (128,100 feet) in a helium-filled balloon, Felix Baumgartner completed a record breaking jump for the ages from the edge of space, exactly 65 ...

NASA: Magnificent Solar Eruption in Full HD

On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, ...

Brian Cox’s Favorite Wonder: Saturn’s moon Titan

Brian Cox’s Favourite Wonder from Wonders of the Solar System: Against the stunning backdrop of the glaciers of Alaska, Brian reveals his fourth Wonder. Saturn’s moon Titan is shrouded by a murky, thic...

Challenges of Getting to Mars: Curiosity’s Seven Minutes of Terror

I thought we couldn’t get more excited about Mars Curiosity’s mission to Mars, but then we saw this popular video about the rover’s “Seven Minutes of Terror" —  th...

Raw Footage of Jupiter from Voyager 1 (1979)

This raw movie footage was taken by the Voyager 1 spacecraft as it raced towards Jupiter in February 1979. Clearly visible is the constantly changing attitude of Voyager’s scan plat...