Topic: atmosphere

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Learning from leaves: Going green with artificial photosynthesis

Releasing too much carbon dioxide into the atmosphere, thanks to the burning of fossil fuels, isn't a good thing. But what if leaves can provide some ideas for how we can turn this 'nuisance gas' into useful chemicals...

The Aurora Named STEVE

For the first time, scientists have ground and satellite views of STEVE (short for Strong Thermal Emission Velocity Enhancement), a thin purple ribbon of light. Scientists have now learned, despite its ordinary name, ...

Are there aliens out there?

Life began on the Earth around 3.5 billion years ago. Has the same thing happened somewhere else in the universe? On an icy moon? On a planet in the Goldilocks zone of a distant star? Imagine if hypothetical aliens we...

Where does Space begin?

How far away is Space from where you are at this moment? How much closer is it when you're flying in a plane? And how close is the International Space Station to Earth if we can spot it in the sky? Travel up, up, u...

A lunar eclipse & the auroras over Alaska, an 8K 360º time lapse

A super blue blood moon eclipse reveals the aurora borealis—auroras over the northern auroral zone—in this stunning 8K 360º time lapse video. The combination of celestial delights was filmed by William Briscoe Photogr...

How to Find a Living Planet

The more we see other planets, the more the question comes into focus: Maybe we're the weird one? Decades of observing Earth from space has informed our search for signs of habitability and life on exoplanets and even...

Postcards from Saturn: The incredible images that Cassini sent home

For over a decade, Cassini has orbited around Saturn 294 times, collected more than 600 GB of data, visited over a dozen moons and discovered at least seven new ones. It has sent over 400,000 images back home. Skun...

‘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...

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