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NASA

NASA said that the launch event and launch of the Space Launch System, which is planned to be the most powerful rocket in the world due to a malfunctioning engine computer, will not take place in February 2022 as planned. It was shared that the problem occurred in the computer located in one of the four RS-25 engines that went back to the space shuttle. Things are failing at NASA

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Orion, officially known as the Orion Multi-Purpose Crew Vehicle, is the largest and state-of-the-art vehicle designed by NASA for multi-purpose space travel, weighing 74,000 pounds (33.5 metric tons). This shuttle is intended to carry a crew of four astronauts to targets beyond low Earth orbit (LEO).

Developed by NASA to launch the Space Launch System, Orion’s primary mission is to facilitate exploration of Mars, asteroids and human beings. Of course, it can be used to transport the crew or supplies of the International Space Station when necessary.

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It is currently undergoing integrated tests inside the vehicle assembly building at NASA’s Kennedy Space Center in Florida. If successful, it would set the stage for a real launch to be used in Artemis 1’s mission to and from the Moon. NASA plans to use the 332-foot-tall (101-meter) rocket for upcoming Moon missions. However, the error encountered in the last test has delayed the date when we will see the real-life functioning of this project. However, it is said that the wait will not be too long.

It is said to be the most powerful rocket in the world when completed. But it’s likely SpaceX will take that feat away from NASA, with Starship scheduled to launch for the first time next year. However, the space agency will once again be able to write its name in history with this rocket. As NASA conducts the integrated test, it ensures that the core stage, Orion, and the two booster rockets are properly communicating with ground systems. During a recent power test of this stage, engineers identified a problem with the RS-25 engine flight controller. The agency described this problem as follows:

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The flight controller works as the brain for each RS-25 engine. It communicates with the SLS rocket to provide precise control of the engine as well as internal health diagnostics. Each controller is equipped with two channels. Thus, in case of a problem in one of the channels during take-off or exit, it has a backup. In the final test, the controller’s B channel on the fourth motor failed to supply power continuously.

In fact, the Aerojet Rocketdyne RS-25 engines were borrowed from the space shuttle program. However, some improvements have been made on it to provide additional power. After the engineers identified the problem, they made investigations and started the fix. However, they eventually decided to replace the problematic motor controller.

Upon this, NASA said that the rocket became fully functional. But engineers will try to work on the problem part and figure out its source. The space agency is now reviewing launch days in March and April. If the timelines announced in October by Artemis 1 task manager Mike Sarafin remain valid, they will be performed at the specified time.

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Trinidad

Trinidad – This is Core Cuba for me, just as Kyoto is Core Japan. I wandered through its colorful streets without stopping. I started walking with the famous Lonely Planet recommended route in the evening. There are trains from the 1800s south of the city. Since the American-made steam train was out of order, we went to Valle de los Ingenios by a Russian-made gasoline-powered train. Security guard Jose both told about the broken steam train and allowed to take pictures. The train ride to the valley is ideal for train fans.

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The train stopped at two places in the valley. At the first stop, Manaca Iznaga, there is a very tall tower built to watch over the slaves working in the sugar cane fields. At the top of the tower, a breathtaking view of the vast valley awaited us. The other stop is Guachinango, where a house converted into a colonial-era restaurant is located. It was a nice stop for a walk around the house, horseback riding, and a snack. I spent the next day in Playa Ancón, it has a long coastline. I said I don’t want to seem dissatisfied about this, but I wasn’t too hit with the sea.

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It is good to take a break on the beaches while walking, and to spend a quiet day reading a book. Hiking I chose the 7 km route to Caburni Waterfall (Salto del Caburni) in the Topes de Collantes national park. The route starts right from the parking lot next to the Kurhotel. After the walk, you should drink coffee at Casa Museo del Café. Take a look at Trinidad from the mirador point, returning from the national park. Security – Tourism is a very important source of income as the country is very poor. Since it is forbidden to touch and harm the tourist, I was able to walk around the streets of Cuba very easily, provided that I was a little careful.

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The only concern of Cubans is to make money by selling a few things.
Internet – Internet in Cuba is very limited but available. It is possible to buy 2CUC internet packages for half an hour or 10CUC for 5 hours from the telecommunication company Etecsa. I easily found the available wireless internet networks in the most central squares of cities or in front of large hotels by seeing a lot of people looking at their phones. As far as I can see, Cubans mostly use the internet for video chat. Also, I haven’t seen the long queues in front of payphones for a long time. Talking is important in Cuba.

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Viazul – Intercity bus company, punctual but aircon too cold. I bought some of my bus tickets online before I went and took the printout with me. I didn’t have to worry about waiting in line or finding a man for a shared taxi. It was only necessary to check-in on the bus half an hour before the bus departure.
Casa particular – This form of accommodation, where Cubans open their rooms to tourists, is quite intimate. It was a good opportunity for me to get to know Cubans better.

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Taxi colectivo – Shared taxis are very common among many major destinations. The price is the same as the bus ticket, it just needs to be filled and it is not clear which type of vehicle you will go with. Cash – I haven’t seen many POS machines outside of Havana. That’s why I converted the Euros I brought with me to CUC and some of them to CUP Pesos at the airport. With pesos, I was able to take advantage of the cheap prices in places where Cubans shop. Namely, 1 Euro is approximately 1.09 CUC. It is translated as 1 CUC=25CUP in the bank. In supermarkets or restaurants where locals go, sometimes 2 currencies are included in the price list from these values, then the peso makes no difference.

But when I bought vegetables and fruits on the road, and had breakfast at the breakfast kiosks where the locals go, I was able to benefit from very reasonable prices because only pesos were used. For example, I paid 7 pesos (I paid 7/25 Euros) for a sundae at the ice cream parlor where the locals go. Help – Bring your unused or shrinking clothes in your suitcase and share them with Cubans. Meeting the needs of little Cubans such as pens and notebooks is also very welcome. Smart apps – I downloaded triposo for offline guide and maps.me apps to my phone before I went, it was very useful since there was almost no internet.

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But when I bought vegetables and fruits on the road, and had breakfast at the breakfast kiosks where the locals go, I was able to benefit from very reasonable prices because only pesos were used. For example, I paid 7 pesos (I paid 7/25 Euros) for a sundae at the ice cream parlor where the locals go. Help – Bring your unused or shrinking clothes in your suitcase and share them with Cubans. Meeting the needs of little Cubans such as pens and notebooks is also very welcome. Smart apps – I downloaded triposo for offline guide and maps.me apps to my phone before I went, it was very useful since there was almost no internet.