yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Northern Lights From 100,000 ft!


3m read
·Nov 10, 2024

This is the most spectacular natural light show on Earth. These images filmed from the International Space Station capture what has drawn people from around the world for centuries. I have come all the way from Australia to see it for myself. Welcome to Alaska! I'm just outside of Fairbanks, and I'm trying to find the Northern Lights, the Aurora Borealis.

As the sun enters the peak of its 11-year sunspot cycle, it ejects high-speed electrons and protons into space. Deflected by the Earth's magnetic field, they collide with the upper atmosphere near the poles, producing the Aurora. But with spectacular lights also comes the threat of disruption to our technological infrastructure. Charging streaming in from the Sun can damage satellites, cause extensive power outages, and disrupt the flight paths of planes around the poles. Scientists warn that unless we find out more about solar storms, we are extremely vulnerable to a geomagnetic catastrophe.

It's fed by the glaciers of the Alaska mountain range. To further this research, I'm joining a team of scientists, teachers, and students. Today, we're flying over the snow-covered mountains of Denali National Park to test out our gear in spectacular surroundings.

"So what sort of research are you doing?"

"Yeah, well, we typically do high-altitude balloon launches. That's sort of the gist of Project Ether for students, especially those who don't have access to the near-space environment. You know, we try to open that up. We're trying to further the science of auroral research and looking at the details of how sort of the global electrical circuit connects and how the Aurora plays into that and causes this beautiful Aurora and sort of the physics involved there."

"Light her up!"

Using a full tank of helium, the team inflates a latex weather balloon to 2 meters in diameter. This provides enough lift for a 6 to 7 kg payload. "So we're going to send this up, well, about 25 km or so. This will help us assess wind conditions in the upper atmosphere here in preparation for tonight's launch into the Aurora."

"One lift-off!"

"That's actually really good buoyancy. Just a little bit of lift when it goes up. This latex is flexible until it keeps expanding and expanding and expanding. You go from about 6 or 8 feet up to about 30 feet in diameter—so, you know, 10 meters. So you're the size of a small house at that point. You know, eventually you reach some limit where it just can't keep expanding, and then it pops, and then you fall back down, and we fall by parachutes."

The recovered footage provides a stunning view from the edge of space, but the real challenge is launching a weather balloon into the Aurora at night. The conditions haven't been ideal because tonight it's a bit cloudy, a bit hazy, and we've got a moon out which is nearly full. So it makes it very difficult to spot these Northern Lights.

"3, 2, 1!"

The balloon must rise into the stratosphere at just the right moment to catch the intermittent Aurora in action. The next morning, we're on the hunt for the payload. From 30 balloons, only one caught sight of the Aurora. This is the first shot of the Aurora from a weather balloon at nearly eye level.

"For them to build some sort of rig, put a camera on it, touch it, lick it, smell it, send it up 100,000 feet to the edge of space, and get it back, you know, it's really awesome to see those pictures and to see that, you know, your device went up there with young scientists taking up the challenge."

These images and the data gathered provide just a glimpse into the future of research on the Aurora and how solar emissions affect our lives.

More Articles

View All
How to Win an Interstellar War
Could aliens destroy us from light years away? Mh, another day at the Kurzgesagt Labs, where we answer the most important questions with science. Today: how might civilizations wage war across light years? What kind of devastating weapons could they use, …
Introducing: Khan Academy Kids!
Hi everyone, Sal here with my three-year-old son Azad, and we’re excited to announce the launch of Khan Academy Kids, which is designed to take students like Azad, ages two to five, to become lifelong learners. Hi friends, welcome to my room! Kids love t…
Paul Buchheit: What are some things successful founders have in common?
So this was actually where the focused frugality obsession and love thing came from. I was actually trying to distill it down into a small enough number of words, and then I was going to try to translate it into emoji, but I failed at that part. I couldn’…
Did The Future Already Happen? - The Paradox of Time
Do your past, present and future all exist right now? Are you watching this video, being born and lying on your deathbed at this very moment? Surprisingly, the answer could be yes. But how can that be? What does that even mean? How does time work? Imagin…
Fisherman With No Fish | Years of Living Dangerously
Through frequent dive trips to Appo Island, Renee has befriended many of the locals. Come over here, John Zenan is a third-generation fisherman who has spent his entire life on the island, living off its resources. He and his son Jory make daily trips to …
How costs change when fixed and variable costs change | APⓇ Microeconomics | Khan Academy
In the last few videos, we were studying our watch factory, ABC Watch Factory. Based on some data, knowing what our fixed costs are, our labor units, our variable cost, our total cost, and then our total output, and that would be for different amounts of …