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🚀💔 82 SECONDS THAT CHANGED EVERYTHING These Blender simulations are based on official investigation findings. On January 16, 2003, Space Shuttle Columbia launched on STS-107, carrying seven astronauts on a 16-day scientific mission. Just 82 seconds after liftoff, a piece of insulating foam broke away from the external tank...

129,535 просмотров • 21 дней назад •via X (Twitter)

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In the final, eerily serene minutes aboard Space Shuttle Columbia on February 1, 2003, the crew of STS-107—Commander Rick Husband, Pilot Willie McCool, Mission Specialists Kalpana Chawla, Michael Anderson, David Brown, Laurel Clark, and Ilan Ramon—went about the routine preparations for re-entry with calm professionalism.Captured by an onboard video camera (recovered from the debris field), the footage—lasting about 7–8 minutes and ending roughly 11–15 minutes before loss of signal—shows the flight deck bathed in the soft glow of instrument panels and Earth’s horizon framing the windows. The astronauts, suited in their orange launch-and-entry garb, perform final checks: adjusting helmets, verifying suit pressures, exchanging quiet words, and capturing the view outside as the orbiter hurtles toward the atmosphere at Mach 25.Voices are steady and light—someone mentions getting gloves on with about 10 minutes to go; there's a casual reference to the landing site. Kalpana Chawla, India's first woman in space and a veteran of STS-87, is visible on the flight deck alongside Husband, McCool, and Clark, contributing to the checklist with her characteristic focus. The cabin feels almost peaceful: floating objects secured, monitors flickering with telemetry, the vast blue-and-white curve of Earth sliding past below.What makes these images so profoundly haunting is the utter normalcy—the everyday heroism of astronauts executing a textbook re-entry after a highly successful 16-day science mission packed with over 80 experiments in microgravity, biology, and Earth observation. No alarms blare. No panic. Just seven dedicated explorers, proud of their work, unaware that a briefcase-sized chunk of foam insulation, shed from the external tank during launch 16 days earlier, had punched a fatal hole in the left wing's reinforced carbon-carbon leading Columbia plunged deeper into the atmosphere over the Pacific, superheated plasma began to breach that breach. Within minutes, the shuttle disintegrated in a fireball of debris streaking across Texas skies, claiming all seven lives in one of spaceflight's darkest tragedies.The recovered footage—released publicly years later through NASA's Columbia Accident Investigation Board report and archival channels—stands as a poignant, silent testament: a snapshot of composure and camaraderie frozen just before catastrophe. It reminds us of the razor-thin margin between triumph and loss in human space exploration, the bravery of crews who accept those risks, and the enduring legacy of those lost—driving safety reforms that shaped the shuttle's remaining years and today's Artemis era.This still from the final onboard video captures the flight deck crew—Husband at the controls, Chawla and others nearby—moments before the breakup began.Image credits: NASA (recovered STS-107 onboard video stills and crew portraits)

Black Hole

71,241 просмотров • 6 месяцев назад

The Space Shuttle’s R-bar Pitch Maneuver (RPM), dramatically nicknamed the "backflip", was one of the most visually striking and critically important procedures in the post-Columbia era of shuttle missions.Introduced as a direct response to the tragic STS-107 Columbia disaster in 2003—where launch debris fatally damaged the orbiter's heat shield—this 360° pitch rotation became a mandatory safety step before every docking with the International Space Station (ISS).As the shuttle approached along the R-bar (the radial vector from Earth's center through the ISS, essentially flying "below" the station), it paused at roughly 600 feet (about 180–183 meters) separation. Then, with the commander at the controls, the orbiter executed a slow, controlled end-over-end roll at approximately 0.75 degrees per second. The full 360° maneuver typically lasted 8–9 minutes, exposing the shuttle's vulnerable underside—its thermal protection system (TPS) of thousands of heat-resistant tiles—to the ISS crew's high-resolution cameras (often equipped with 400mm and 800mm telephoto lenses).ISS astronauts, positioned at windows in modules like Zvezda or Destiny, snapped hundreds of detailed photos during the ~90-second optimal belly-up window. These images were immediately downlinked to Mission Control for rapid analysis by engineers on the ground, hunting for any signs of tile damage, missing pieces, or debris impacts that could jeopardize re-entry. Combined with inspections from the shuttle's own Orbiter Boom Sensor System (OBSS), the RPM provided unprecedented assurance that the vehicle could safely return home.This choreographed ballet—requiring pinpoint piloting, precise attitude control via Reaction Control System thrusters, and flawless coordination between shuttle and station crews—turned a routine rendezvous into a high-stakes safety ritual. Performed flawlessly on missions from STS-114 (Discovery, 2005, first RPM under Eileen Collins) through the program's end in 2011, it exemplified NASA's commitment to "return to flight" lessons NASA (Iconic views from the ISS during RPM: the shuttle's heat shield tiles fully exposed against Earth's backdrop, revealing the intricate mosaic of the TPS in stunning detail.)

Black Hole

184,989 просмотров • 7 месяцев назад

49 years ago today: America´s worst air disaster May 25 1979: American Airlines Flight 191, a DC-10, crashes on takeoff from O'Hare (Chicago, US). All 271 aboard plus 2 on the ground die, the deadliest airliner crash in US, a figure only surpassed by the 9/11 terrorist attacks. On take-off, the engine separated from the wing due to improper maintenance, damaging hydraulics, and causing loss of control, as detailed below. Specifically, it was determined that during takeoff rotation, the No. 1 (left) engine separated from the left wing, flipped over the wing, and landed on the runway. The separation severed the hydraulic lines that lock the leading-edge slats in place and damaged a 3-foot (1 m) section of the left wing’s leading edge. Aerodynamic forces then caused an uncommanded retraction of the outboard slats. As the aircraft climbed, the damaged left wing generated substantially less lift than the right wing, whose slats remained deployed, and the engine provided full takeoff thrust. The resulting aerodynamic imbalance produced an abrupt left roll to a 112° bank angle—partially inverted—before the aircraft crashed in an open field adjacent to a trailer park near the runway’s end. The engine separation was caused by structural damage to the pylon, resulting from improper maintenance procedures at American Airlines, which are detailed in the thread below 1/6 ⬇️ 🧵 Video – Plane N´ Boom (animation from Mayday ACI series)

Francisco Cunha

404,713 просмотров • 3 месяцев назад

B-17F Flying Fortress 42-30867 drifts out of formation pursued by a Luftwaffe fighter while the crew bails out on October 9th 1943 This segment of Luftwaffe gun camera footage is unique in that it is possibly the only surviving clip where the aircraft under attack is identifiable by its squadron codes. In the last frames the code N-TU is visible suggesting this was 351st Bomb Group 510th Bomb Squadron Boeing B-17F Flying Fortress 42-30867. The 351st Bomb Group's mission narrative indicates that this was the aircraft's second combat mission having been delivered to the 510th two weeks earlier, and it was one of five of the group's aircraft to be lost that day: Mission No. 47 – October 9, 1943 The Group was briefed to attack the Arado Aircraft Factory at Anklam, Germany. The crews were very concerned when confronted by the mission details. It was the longest flight to date, with expected moderate to heavy flak concentrations. After the briefing, Sgt. Pete Zibas, the engineer on Lt. Garcia’s aircraft, recalls the gunners clamoring for an additional four cans of ammunition per gun. Twenty-one planes were led by Colonel Burns, Captain Carraway, and Lt. Norris with Lt. Stackhouse navigating and Lt. Winter as bombardier. The formation crossed the North Sea at 4,000 feet and prior to climbing to bombing altitude, the fuel was cross-fed into the main tanks and the bomb bay tanks jettisoned. As this operation was being carried out in Flight Officer Warring’s ship, 42-3152, fire broke out, but the crew managed to extinguish the flames and the ship continued in formation. Shortly after crossing the Danish coast, the first fighter attacks commenced. Thirty to fifty ME 109s pressed home many close attacks. The first plane to be hit was the second element lead, 42-30790, flown by Captain Morse. A burst of 20mm exploded in the left wing setting it on fire. Captain Morse dropped his wheels and left the formation under control. All the crew bailed out safely. At the start of the bomb run the enemy fighters broke off their attacks, leaving the formation to suffer the attentions of the Anklam flak gunners. Smoke from the bombs of the preceding combat wing obscured the target and as a consequence most of the bombs fell in the center of the city. Flight Officer Warring was still experiencing mechanical difficulties. He was force to jettison his bombs after the target when the bomb bay doors had to be hand-cranked open. The formation turned for home and flew straight into the Luftwaffe’s assembled forces. ME 110s and a few JU 88s stood off and fired rockets into the formation. Lt. Maser’s aircraft, 42-29603, left the formation with its ailerons shot out and number three engine on fire. All ten crewmen bailed out from the stricken aircraft, but only nine survived. What happened to Sgt. Gorsuch, the ball turret gunner, is not known. Sgt. Gorsuch was on his 25th mission, having substituted for the regular crew member, Sgt. Nadeau, who had been wounded on a previous mission. At the same time Lt. Christman, in 42-30867, and the luckless Flight Officer Warring went down. Despite injuries to several of Flight Officer Warring’s crew, they all managed to bail out. Eight members of Lt. Christman’s crew survived. Sgt. Blais and Butterbach were killed in the fighter attack. The fighter attacks persisted for some three and a half-hours after leaving the target. In the final stages, ME 109s and FW 190s from coastal fields joined in the attacks. It is believed that it was these fighters that shot down 42-29868, flown by Lt. Turley. Only Lt. Williams, the copilot, and Sgt. Curtis, the top turret gunner, survived the crash into the North Sea. They were picked up by the Germans near the Danish coast. When the Group landed at Polebrook it was found that Lt. Nardi’s ship, 42-29877, had returned with an unexploded rocket wedged in the main spar. Of the crew on board 42-30867, Radio Operator David Pressel, Ball Turret Gunner John Butterbach and Tail Gunner Edmond Blais were killed in action. The rest of the crew consisting of Pilot Lloyd Christman, Copilot: James Laird, Navigator Eldred Hancy, Bombardier John Hemm, Flight Engineer Commodore Sharp and Waist Gunners James White and William Klink baled out successfully and were taken prisoner. Of the 16 aircraft from the group assigned to the mission that made it back to base, all suffered some form of battle damage, a lot of it from detonations of Werfer-Granate 21 rockets that were used by Luftwaffe fighters to break up the "combat box" defensive formations. Six men on board the returning aircraft were wounded in action, one of them seriously. With almost a quarter of the unit shot down, this is typical of the unsustainable loss rate suffered by the Eighth Air Force while flying without fighter escort during the time the Luftwaffe was still a force to be reckoned with. I was unable to determine the identity of the Luftwaffe pilot awarded this particular victory however from the footage itself it appears that the attacking aircraft is a twin-engined fighter, likely a Messerschmitt Bf 110. There were several Zerstörergeschwader and even Nachtjagdgeschwader operating the type that claimed B-17 bombers on this day and the Missing Air Crew Report for 42-30867 does not give a precise location of the loss. #guncamera #guncam #b17 #flyingfortress #ww2 #wwii

hw97karbine

42,199 просмотров • 1 год назад

NEW PETITION CALLS FOR RIGHT-WING NATIONAL CAMP UNITY AHEAD OF ELECTIONS גלעד אך With three months until Israel’s elections, a new campaign is warning that the creation of multiple new parties could split the right-wing national camp and leave tens—or even hundreds—of thousands of votes below the electoral threshold. Launched ahead of Tisha B’Av, the campaign draws a parallel to the internal divisions among Jewish forces during the Roman siege of Jerusalem. Its organizers are calling for one unified political framework focused on defeating Israel’s enemies, maintaining territorial control and preserving the military achievements of the current war. “We cannot repeat the mistakes of 1992,” the campaign warns. FULL TRANSCRIPT Three months before the elections, it is clear to everyone that a large part of the Israeli public has moved to the right and has grown tired of political agreements. But the establishment of five new right-wing parties—some of which will almost certainly fail to cross the electoral threshold—could throw away tens of thousands, and perhaps even hundreds of thousands, of right-wing votes. The outcome is clear to everyone: Yair Golan as defense minister. Mansour Abbas as national security minister. The only way to prevent this is through the people of Israel. A call from tens of thousands of people demanding unity will bring order to the situation. Enter the petition, sign it and share it. That is the minimum you can do. We will not throw away the achievements of IDF soldiers. We will not repeat the mistake of 1992. Friends, it is the eve of Tisha B’Av, the day on which we mourn the destruction of both Temples, here at the Temple Mount in Jerusalem. Two thousand years ago, when the Second Temple was destroyed, historians say there were 25,000 Jewish fighters here who were ready and capable of fighting the Romans. There was only one problem: they were divided into three factions—three separate military forces. One was led by Shimon Bar Giora. Another was led by Yohanan of Gush Halav. The third was led by Elazar ben Shimon and the Zealots. Each of these groups was convinced that its own leader was the one who should rule and the one who should lead the people of Israel. Even after the Romans had already entered the Old City and breached the walls, the Jews from these three factions continued fighting among themselves until the Temple was destroyed. Two thousand years have passed, but some things still have not changed. We are approaching a decisive election. If we do not manage it properly, the fragmentation of the national camp could, with its own hands, bring about the establishment of a Palestinian state. It is time for us to learn how to unite. We now need one new national party that calls for victory and implements the principles of victory: encouraging emigration, taking control of territory and defeating the enemy on the battlefield. We must not divide ourselves into a thousand fragments and separate parties. Only through genuine unity will we succeed in winning this election and ensuring that all the achievements we secured during this war are not lost.

Mossad Commentary

21,545 просмотров • 1 месяц назад

It was such an honor to help design this “Snap” coin that flew alongside four crew coins on the Polaris Dawn mission and an even greater honor to see it fly to space. Thank you to our artist friend Erin Bonilla for beautifully turning this idea into reality. I was so blown away when the crew graciously offered this opportunity - thank you - I can’t wait to put the flown coin on display and will cherish it forever. Some insight on the design: The seven stars represent the seven astronauts I have been lucky to befriend from Inspiration4 to Polaris Dawn: Jared, Sian, Hayley, Chris, Kidd, Sarah, and Anna. My silhouette is seen capturing a Falcon 9 rising in front of sunrise, based off one of my all-time favorite photos, but with the fairing swapped out for a Dragon. Other elements include palm trees and birds representing my appreciation for the local Florida nature around the Cape. In the video you can see the flown coin floating in space. Earlier in the mission it reached new heights in Earth orbit during a crewed mission and then was exposed to the vacuum of space during the mission’s spacewalk. The still image is another unit, not flown, captured a few months ago when I saw the coin in-person for the first time. I have kept it on my person for much of the last few months as a good luck token and reminder of the exciting space program whose stories I am lucky to help share. I had it with me all throughout launch day and on the VAB roof during liftoff, knowing that a copy - and a small part of me - was joining the crew in space. Many were made, and one each for the four crew and myself flew - but each coin has a small magnetic insert that pops out. Hundreds of those smaller inserts flew, and we will be able to pop in those small flown parts into the non-flown coins, such that hundreds of coins will have a part that flew. Thanks Jared Isaacman for the video! So cool - forever grateful.

John Kraus

290,053 просмотров • 1 год назад