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Cool Stuff Daily

Record Breaking Solar Flight and Satellites Affecting Astronomy

Cool Stuff Daily

Reggie Risseeuw and Marques Pfaff

News, Tech News, Science, Society & Culture

4.6732 Ratings

🗓️ 2 September 2025

⏱️ 19 minutes

🧾️ Download transcript

Summary

A record breaking flight offers a glimpse of the future of clean aviation and how satellites are affecting Earth's oldest science - Astronomy. A Swiss Pilot Flew a Solar-Electric Aircraft to the Edge of the Stratosphere | ZME Science Astronomers Warn That Satellite Mega-Constellations Could Steal the Night Sky Forever | ZME Science Contact the show - [email protected] Secure your online data by visiting ⁠ExpressVPN.com/COOL⁠ to find out how you can get up to four extra months FREE. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Hey, welcome back to another initiative cool stuff ride home where of course we bring you some of the more interesting and downright cool stories from around the globe.

0:10.0

Coming up on this episode, a record-breaking flight offers a glimpse into the future of clean aviation.

0:16.9

Plus, the race for space internet is colliding with humanity's oldest science.

0:22.3

Details on the way.

0:23.6

All that and a look at this day in history.

0:25.8

Coming up, it's cool stuff.

0:27.5

Let's have a look at an article from ZME science and author Tudor Therita.

0:32.2

On a summer afternoon, high above the Swiss Alps, Rafael Domion stared out at a commercial airliner flying below him.

0:40.4

At 9,500 meters or 31,000 feet, Domian was alone in a feather-light aircraft powered not by jet fuel, but exclusively by the sun.

0:51.5

For more than five hours on August 12th, the Swiss Explorer climbed and coasted

0:56.6

through the thin air in solar stratos, a solar electric plane no heavier than a grand piano,

1:02.8

breaking the world altitude record for its class, pending official confirmation. The aircraft,

1:08.4

called the HB-SXA, is part of a bold attempt to prove that solar-powered flight is not only possible, but ready to rival some conventional aircraft at high altitudes.

1:20.5

Domion later wrote, quote, up there facing the sun that powers our wings, flying without burning a single drop of fuel, is an indescribable feeling,

1:30.0

a moment out of time, end quote.

1:32.3

Domian's flight took off from Cyan Airport in western Switzerland and climbed steadily for over

1:38.2

two hours.

1:39.5

Flying alone and dressed at a pressure suit more often seen on astronauts than aviators, he reached 9,521 meters,

1:47.0

just over 31,200 feet. It's the highest demand solar electric aircraft has ever flown,

1:54.0

beating the previous record of 9,235 meters set in 2010 by Solar Impulse pilot pilot Andre Borsberg. At cruising height,

2:03.9

Domian's aircraft briefly crossed paths with a commercial jetliner, one burning tons of

2:09.2

fuel, the other floating on solar power and alpine thermals. The contrast was poetic, but

...

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