Topic: atmosphere

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‘Electric Wind’ Can Strip Earth-like Planets of Oceans, Atmospheres

'Electric wind' on Venus may have stripped the planet's upper atmosphere of oxygen... and it "may have played a significant role in stripping Earth's twin planet of its oceans, according to new research results from t...

Climate Change 101 with Bill Nye + solutions great and small

What is climate change, what causes it, and how do we mitigate its effects? Bill Nye summarizes Climate Change 101 in concert with National Geographic's Climate Change issue and COP21, the December 2015 Paris Climate ...

Solar Wind Strips Martian Atmosphere – NASA Goddard

In 2014, NASA's MAVEN (Mars Atmosphere and Volatile Evolution mission) spacecraft measured the speed and direction of ions escaping from Mars. The data collected as it orbited the Red Planet is visualized in this NASA...

Why Do We Put Telescopes in Space? – MinutePhysics

If we have excellent telescopes here on Earth, why is it so important to put telescopes like the Hubble Space Telescope into space? This MinutePhysics video explains the challenges of being an earthbound telescope, fr...

How to Make a Cloud in Your Mouth – Physics Girl

To make a cloud in your mouth -- yes, this is a very cool trick that actually works with practice -- you'll need to make tiny water droplets in your mouth. Then up the pressure. Physics Girl Dianna Cowern demonstrates...

How Do Greenhouse Gases Actually Work?

The Earth and the Moon are essentially the same distance from the sun, yet the two rocks have very different surfaces thanks to our Earth's atmosphere. It shields us during the day, and at night, it traps enough heat ...

The Four Spheres (Geo, Bio, Hydro, & Atmo) with Crash Course Kids

The ground or geo-sphere, water or hydro-sphere, air or atmo-sphere, and life or bio-sphere: Earth and everything on it can be organized into these four distinct yet interconnected subsystems. Knowing more about each ...

PoSSUM Program Trains Scientists for Space Research

For those who want to be an astronaut or work in space, and for those climate scientists who want a closer look at the mesosphere -- the understudied layer of Earth's atmosphere that's above the stratosphere and below...

The Captured Ice Moon: Voyager 2 and Neptune’s moon Triton

As NASA looks toward the New Horizons probe's July 2015 rendezvous with dwarf planet Pluto and its five known moons, they are also reviewing Voyager 2 data collected on the 1989 flyby of Neptune's moon Triton, seen he...

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

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 unique our small, wet rock of a planet is. But the Earth is unique, and we're always happy to happe...

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? How to identify clouds

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 ...

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