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Topic: atmosphere
Saturn’s rings are disappearing
Saturn's rings are disappearing quickly, though 'quickly' is a relative term. With help from decades-old data from Voyager 1 & 2, NASA scientists have determined that Saturn will lose its iconic rings in less than a f...
Airglow & the secrets behind Earth’s colorful ionosphere
What does our planet look like from space? Most are familiar with the beloved images of the blue marble or pale blue dot -- Earth from 18,000 and 3.7 billion miles away, respectively. But closer to home, within the ne...
Does ‘the ozone hole’ hold the secret to fixing climate change?
We don’t hear much about 'the hole' in the ozone layer anymore. That’s because we’ve all but fixed it, thanks to consumer choices and a massive international agreement called the Montreal Protocol. Can we learn anythi...
Mars 101: An introduction to the red planet
From its blood-like hue to its potential to sustain life, Mars has intrigued humankind for thousands of years. Learn how the red planet formed from gas and dust and what its polar ice caps mean for life as we know it....
The Mars Helicopter, NASA’s small autonomous rotorcraft demonstration
Launching in 2020 on the belly of NASA's next Mars Rover, this small rotorcraft will be an autonomous asset from above the Red Planet, taking photos of the landscape and scouting for its rover. The pair are scheduled ...
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 ...
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