Blair Burgess

Ahora sí hablemos en serio de la foto. Este es un trino para interesados en fotografía, astrofotografía y el que quiera ¿Por qué esta foto es increíble? Algún conspiranóico, dándoselas de suspicaz, preguntó que por qué esta foto tomada por el comandante del Artemis II se veía más opaca que la foto tomada por la tripulación del Apolo 17 en 1972. Bueno. Acá viene lo emocionante. Esta fotografía hubiera sido imposible tomarla con una cámara análoga; y no cualquier cámara digital puede tomarla. El archivo original de esta foto está disponible para su descarga en la página de la NASA. En las propiedades del archivo se puede ver con qué cámara fue tomada y los ajustes de exposición que se usaron. Hasta el serial de la cámara. Esto, primero que todo, garantiza que la foto que estamos viendo no fue creada digitalmente, ni con IA, sino capturada por una cámara real por un humano. Sé que no es suficiente argumento para los conspiranóicos, pero ni modos. Esa que está ahí es la Tierra. Ahora sí lo interesante. ¿Por qué se ve como más opaca que la del 72? porque resulta que en la cara de la tierra que vemos en esa foto, está de noche; si hacen zoom pueden ver el brillo de la iluminación nocturna. Pero ¿cómo, si es de noche, puede verse como si fuera de día? Porque la foto se hizo con un altísimo ISO de 51200! El ISO es la sensibilidad del sensor a la luz. Con la mayoría de cámaras digitales, con ISOs de más de 6400, el ruido es tanto que la foto se ve prácticamente ilegible. Pero la cámara que tiene el comandante Reid Wiseman es una NIKON D5, que no es una cámara muy nueva; tiene 10 años de haber sido lanzada. Pero su sensor es reconocido por garantizar una calidad decente de imagen con ISOs altos. Y eso, para los que siempre preguntan cómo se hace una buena foto del cielo, es fundamental ¿Por qué? Pues para poder tomar fotos de los astros sin tener que bajar mucho la velocidad de exposición. Porque si bajas mucho la exposición apra que entre más luz, queda capturado el movimiento de los astros y de la rotación de la Tierra, cuando estás en la Tierra. Así que un iSO tan alto hizo posible que Wiserman pudiera disparar a una velocidad de 1/4 de segundo. Que es baja, pero no tanto. Es digamos, el límite para la astrofotografía. Por eso esta foto tiene ruido, porque de todas formas es un ISO altísimo. Pero lo que más me emociona a mí, es que la tomó con un lente 14 -24mm F2.8. Es decir, en terminos coloquiales, que esta foto no tiene zoom. Para que lo dimensionen: cuando uno quiere tomar una foto de la Luna desde la Tierra que salga así de "cerca" tiene que usar un lente de unos 400mm de distancia focal. Wiserman usó un ¡gran angular de 22mm! Es decir que él estaba viendo la Tierra asi de grande frente a sus ojos. Porque la foto no fue recortada en edición y eso lo sabemos porque en las propiedades del archivo siempre aparece cuando una foto fue editada. El archivo está limpio, tiene la resolución original de la cámara. La tierra era inmensa frente a su mirada. Hermoso. Pero para mí lo más mágico de esta foto, incluso más que las auroras boreales, es que se ve como la luz de sol, que está del otro lado de la tierra, ilumina nuestra atmosfera. Y eso es magia pura, porque esa atmosfera tiene una composición milimétricamente perfecta para permitir que la vida, tal y como la conocemos, sea posible. Esta foto, es un regalo precioso para la humanidad. Les dejo al link para que descarguen la foto en alta resolución y el pantallazo de las propuedades del archivo.

Christina Koch was a firefighter at the South Pole at -111°F before she ever applied to be an astronaut. That was maybe the fourth most interesting line on her resume. She grew up in North Carolina, got three degrees from NC State, and her first real job was building deep-space instruments at NASA. Then she left for Antarctica. Spent three and a half years bouncing between the Arctic and Antarctic as a research scientist, including a full winter at the South Pole base. That means going months without sunlight or fresh food, with a crew of about 50 people and no way out until flights resume. While she was down there, she also joined the glacier search-and-rescue team. After coming back, she went to Johns Hopkins and built instruments for two NASA missions (one of them is still orbiting Jupiter right now). She figured out how to start a tiny vacuum pump that NASA designed for a future Mars rover. Johns Hopkins nominated it for their Invention of the Year in 2009. Then she went back to the field. More time in Antarctica and a stretch up in Greenland. A government research station in northern Alaska, near the top of the world. Then she ran another one in American Samoa, near the equator. In 2013, NASA selected her from 6,300 applicants. Eight people got in. Her first space mission was supposed to be a normal rotation on the International Space Station, but NASA extended it. She ended up staying 328 straight days and orbiting Earth 5,248 times, covering about 139 million miles (roughly 291 round trips to the Moon). Up there, she ran over 210 experiments, including tests of cancer drugs in zero gravity and 3D printers that can build structures close to human tissue. Six spacewalks, 42 hours floating outside the station. She learned Russian for the training. She flies supersonic jets. Right now, Koch is on Artemis II, heading for a flyby behind the far side of the Moon. The crew launched on April 1 and is on track to travel about 252,000 miles from Earth, which would break the all-time human distance record of 248,655 miles set by Apollo 13 in 1970. That record has stood for 56 years, and it was set during a disaster that nearly killed the crew. Fred Haise, one of the Apollo 13 astronauts, is 92 now. He told Koch: "I heard you're going to break our record." Nobody had left Earth's neighborhood since December 1972. Koch and her three crewmates are the first in 53 years, and they are coming home at about 25,000 mph. That is faster than any crewed spacecraft has ever come back through the atmosphere.

1 Day!!! This legendary track opens in 1 Day! @keenelandracing Spring in Kentucky. Nothing better. @KentuckyDerby @WLKY

@realmrbill2 @CitizenX I know some recent Argentinian expats who still have family there and they would guffaw and LOL at this original post !! 🤣🤣🤣 Argentina as an alternative to Canada? 🙄 Maybe if your only goal in life is watching good soccer 😏

@CitizenX You do realize that both Argentina and El Salvador are considerably unstable at this time? ( not sure about St. Kitts & Nevis)

🇨🇦 Plan B passport options for Canadians: - St. Kitts & Nevis - El Salvador - Argentina All these citizenships will give you a hedge against political and social instability in Canada.

That type of tumour never goes away in dogs. They just have more pain until you need to euthanize humanely. Chemo has iffy results at best. Stop being a dick. There is obviously something to this treatment. Real scientists are involved. It may not be a solution BUT it is certainly SOMETHING!

@ManofTungsten99 @grok @kiruwaaaaaa @Polymarket Where is the evidence that outcome had anything to do with the mRNA therapy. You need controls, sample size & repetition of results to make that determination none of which they have.

JUST IN: Australian man cures his dog’s cancer by uploading its DNA to ChatGPT to design a custom vaccine from scratch.

😢

@TristinHopper How convenient for racists and fascists to imply they aren’t REALLY such. Goebbels said it was a neat trick at 1934 Nuremberg Rally.

To any future historians reading this, this era will make a lot more sense if you remember that every name is the opposite of what it really is. The antifascists are fascists, the antiracists are racists, the fact-checkers are propagandists, etc. Hopefully this has been fixed by your time.

@brianlilley Just a party line asshole. 🙄

If you have been paying attention the Americans have been saying this for over a year. Mark Carney said this in the summer as well. It’s good that Greer is on the record.

@Hot_Pepper76 Some things just don’t age well

1984 throwback to Sheriff Buford T. Justice crashing the All-Star Party for Burt Reynolds. Rest in Peace Jackie Gleason & Burt Reynolds.

My father did legal work for them at the height of their popularity. They used to send albums home for him to give to us. Even other bands like Led Zeppelin. My parents went to at least one of their Junos award ceremonies as their guests. They had several hits. Should be more of a Canadian icon than they maybe are. 😕🤔

@RobinNakamoto @Eljaboom And why would mobile phones work in an electromagnetic Holocaust 🙄🤦🏻‍♂️??

@Eljaboom It’s very cool and all, but someone should tell the clawbot that made this that electric cars don’t make that noise 🤣

R.I.P HOLLYWOOD! THIS MOVIE IS 100% AI GENERATED FEATURING DONALD TRUMP & KASH PATEL. CAN'T BELIEVE THIS IS REAL...🤯

Relive Mikaël Kingsbury's final run as he won Canada's first gold medal at Milano Cortina 2026! 🥇🇨🇦 #TeamCanada | #MilanoCortina2026 | @CBCOlympics

@SandSteelCotton @FarmGirlCarrie I dare him to to do those moves today. 😬😏🤣

@FarmGirlCarrie Dan Akryod had some moves...

Wasn’t classic Saturday Night Live, the absolute best? I miss these days…

O Canada plays for the first time at #MilanoCortina2026 🇨🇦🥇

@DougKass Who drove her in the US? Especially at the Red Mile. Jeez she got some brutal trips. She was tough

In the late 1980s my trotting horse (standardbred), Tarport Lizzy, represented the U.S. in an International Trot at San Siro (Milan, Italy). I had the only filly in the field and she finished in third place out of 17 horses. Competing at the highest level... @dougkass @andrewrsorkin @BeckyQuick @SquawkCNBC @KeithMcCullough @hedgeye @carlquintanilla @ScottWapnerCNBC @jimcramer @Tomkeene @ferrotv @lisaabramowicz1 @business @CNBCFastMoney @HalftimeReport @pboockvar @Convertbond @guyadami @LanceRoberts @WhitneyTilson @KeithMcCullough @hedgeye @HedgeyeDJ @SamofAmerica

@NancyH_60 This is a man when speaking about his former wife Pamela Anderson said: “why buy the cow when you can have the milk for free” 🙄Very respectful of women—-not!!

This was my favorite moment of the halftime show: Kid Rock talking about the Bible and praising Jesus Christ. 🙏✝️🕊️

@One_Alasco @grok is this real or AI

🚨🚨💢 Elle dit a Lady Gaga qu’elle ira en enfer , Gaga retourne vers elle ,lui donne un baiser et lui dit qu’elles iront ensemble en enfer .😭😭😭😂😂😂😂

Legend 😔

@MbarkCherguia All good. But Vella best IMO

Who performed the better cover of 'What's Up?' by 4 Non Blondes? 😍

@rontu88 @toad1876 @1anglergolfer @LangmanVince @BenRoman252251 Look up 1987 Montreal Protocol (far ozone healing) and Canada-US Air Quality Agreement of 1991 (for legislation on both sides of border that curbed acid rain causing pollution). If you are able to read @rontu88 🙄🤔

@toad1876 @Desibesi @1anglergolfer @LangmanVince @BenRoman252251 Take care retard! 😘

18 years ago Al Gore and John Kerry told us the Artic will be Ice-free by 2013 because of global warming! This is Texas in January of 2026!