Well, the north star is not particularly bright in the scheme of visible stars in the night sky. It ranks somewhere near 50th for brightness. But for the question if the brightest "light" on Earth, it depends on your scale. The brightest city is most likely LA. The brightest city section is reported to be the Las Vegas strip . But the brightest individual light? That goes to the Luxor Sky Beam atop the iconic pyramid. Answer from rxneutrino on reddit.com
WIRED
wired.com › science › science › scientists have created light a billion times brighter than the sun
This laser beam is the brightest light ever produced on Earth | WIRED
June 28, 2017 - A light one billion times brighter than the surface of the Sun has now been created in a lab, making it the brightest light ever produced on Earth.
Reddit
reddit.com › r/askscience › what is the brightest light on earth?
r/askscience on Reddit: What is the brightest light on Earth?
August 7, 2017 -
Hello reddit, I just saw another space post by someone on the ISS. Some areas on earth at night are obviously brighter than others due to being clusters of lights in cities. I now wonder, what light on Earth is the most noticeable from space. It's almost like looking for the North star, except on Earth.
Top answer 1 of 4
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Well, the north star is not particularly bright in the scheme of visible stars in the night sky. It ranks somewhere near 50th for brightness. But for the question if the brightest "light" on Earth, it depends on your scale. The brightest city is most likely LA. The brightest city section is reported to be the Las Vegas strip . But the brightest individual light? That goes to the Luxor Sky Beam atop the iconic pyramid.
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I'm not sure exactly what kind of answer you're looking for, but if you define "bright" as the maximum photon flux through an observer's position in space, the brightest thing earth has would definitely be a laser. The trick with this is, unlike city lights, lasers are extremely directional, so you really have to know where to point the laser. But, if you know where/when someone will be looking toward earth and you want them to see a super bright light, use a laser! I'm not sure what the brightest lasers on earth are, but you could definitely blind someone on the ISS, and you could easily be seen many many lightyears away, assuming you know where the observer will be that many years in advance!
Videos
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Hacksmith's World's Brightest Flashlight - Guinness World Records ...
KETV
ketv.com › article › un-l-creates-brightest-light-ever › 10248072
UNL creates brightest man-made light
July 18, 2017 - Researchers at the University of Nebraska--Lincoln have created a light that can outshine the sun a billion times over."We have generated and measured the brightest light ever in the history of mankind," said Don Umstadter, director of UN-L's Extreme Light Lab.He and his team of physicists used the lab's Diocles laser to focus the intense beam of light. "We are able to reach this result first in the world.
KETV
ketv.com › article › unl-scientists-create-world-s-brightest-man-made-light › 10252955
UNL scientists create world's brightest man-made light
July 13, 2017 - WEBVTT JULIE: KETV NEWSWATCH 7'S ANDREWOZAKI TONIGHT ON A SOURCE OFPRIDE AND PROMISE.REPORTER WHAT IT COMES TO THEBRIGHTEST, THE UNIVERSITY OFNEBRASKA CAN NOW EVEN OUTSHINETHE SUN.RESARCHERS HERE HAVE CREATED ALIGHT A BILLION TIMES GREATERTHAN THE SURFACE OF THE SUN.>> WE HAVE GENERATED ANDMEASURED THE BRIGHTEST LIGHTEVER IN THE HISTORY OF MANKIND.REPORTER: QUITE A FEAT FOR DONUMSTADTER AND HIS TEAM OFPHYSICISTS AT UN-L'S EXTREMELIGHT LAB.>> WE ARE ABLE TO REACH THISRESULT FIRST IN THE WORLD.SO WE FEEL PRETTY PROUD ABOUTTHAT.REPORTER: WHAT THE TEAM ALSOFOUND OUT IS WHEN YOU PRODUCELIGHT THAT B
Guinness World Records
guinnessworldrecords.com › world-records › 100753-brightest-light-ever-observed
Brightest light ever observed | Guinness World Records
October 16, 2023 - The BOAT lasted approximately seven minutes and contained more energy than if the entire sun’s mass was converted into energy at once. It slightly disturbed the Earth’s ionosphere, despite being unimaginably distant at 2.4 billion light years from Earth. The BOAT's true brightness is not fully measured because it saturated the detectors of almost all gamma-ray instruments in space.
IMALENT®
imalentstore.com › blogs › flashlight-video › build-the-worlds-brightest-flashlight
Build the world's brightest flashlight
March 28, 2023 - The first time he tested the light for the Hacksmith video, he hadn't yet designed a way to focus the beam, so the intense brightness filled the warehouse. Thiele's multiple pairs of sunglasses proved no match for Nitebrite 300. "It was very bright.
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New Scientist
newscientist.com › article › dn13634-powerful-laser-is-brightest-light-in-the-universe
Powerful laser is 'brightest light in the universe' | New Scientist
April 9, 2008 - “My astrophysicist friends tell me that near a gamma-ray burst, they surmised that the [light] intensity probably gets to 1020 watts per square centimetre during the explosion,” Ditmire told New Scientist. Light from the Texas Petawatt laser can reach about 100 times that level, he says. “For the briefest instant, over a very small volume, we’ll have the brightest light in the universe.”
Quora
quora.com › What-is-the-brightest-light-in-the-world
What is the brightest light in the world? - Quora
Answer (1 of 2): That kind of depends on what you call “world” and “light”. I define brightness as watts per steradian, so it doesn’t change brightness as a function of how far you are from it. Obviously, standing at the top of Luxor looking into the Sky Beam, you would say it is the brightest li...
The Independent
independent.co.uk › news › science
Billion suns: Scientists create brightest light ever produced on Earth | The Independent | The Independent
June 26, 2017 - And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.Your support makes all the difference.Read more · Scientists have created the brightest light ever produced on the Earth, shining a billion times stronger than the surface of the sun.