January 27, 1945- ‘The black hole of human history’: The liberation of Auschwitz, 81 years on
https://tvpworld.com/91267719/holocaust-memorial-day-81-years-since-liberation-of-auschwitz
Excerpt:
Across the world today, people will pause to mark Holocaust Memorial Day, a date long fixed to coincide with the liberation of Auschwitz on January 27, 1945.
It was on this day, 81 years ago, that soldiers from the Soviet-commanded 60th Army of the First Ukrainian Front entered Auschwitz.
🙏🏻
40 Years Ago Today, the Space Shuttle ‘Challenger’ Exploded 73 Seconds After Liftoff
Excerpt:
.....NASA had been lucky to avoid catastrophe on previous missions, as the previous launch videos clearly demonstrated. At least half of the 24 successful shuttle missions had O-ring problems: the seals failed, and there were partial burn-throughs of the rings.
But NASA went ahead anyway, calling the O-Ring problem an “acceptable risk.” On Jan. 28, 1986, the extreme cold at launch (36°F) was so far outside the “experience base” of those previous 14 missions that the safety margin finally vanished.
That day was 15 degrees colder than any previous Space Shuttle launch. The freezing conditions caused the rubber O-rings in the rocket boosters to stiffen, preventing them from sealing properly and leading to the structural failure.
Within seconds of launch, the O-ring melted away, and a stream of white-hot burning fuel began to eat away at the skin of Challenger’s liquid fuel rocket. Just 73 seconds after launch, the liquid fuel of the booster ignited, blowing up the shuttle and its seven crew members.
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And currently:
NASA is Going Back to the Moon Next Month in a Ship That Many Experts Feel Is Unsafe
Excerpt:
.....It’s been a long time coming. NASA has been developing the Space Launch System (SLS), which includes two solid rocket boosters (SRBs) and the Orion capsule, for 20 years. Development costs have exceeded $29 billion (excluding the Orion capsule), and the entire Artemis campaign cost $93 billion through FY2025.
There has been exactly one SLS launch in all that time. An unmanned Artemis 1 was launched in November 2022, traveling to the Moon and back. It was mostly successful.
I say mostly because there was a slight problem with the Orion’s heat shield. In its efforts to save a little money, NASA redesigned the heat shield “to increase manufacturing and installation efficiency.”
It isn’t supposed to look like this.
https://x.com/swaginawagon/status/2016227363441303639