Use wechat scan QR code to share with friends and circle of friends_ blank" href=" https://news.163.com/news/search?keyword=SpaceX "> SpaceX < / a > launched interstellar < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%9E%E8%88%B9 "> spaceship < / a > prototype Sn10. Sn10 took off from boccachica, Texas, and reached an altitude of about 10km, then successfully < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%9D%80%E9%99%86 "> landing < / a >. But a few minutes later, the prototype exploded again on the landing platform. < / P > < p > < / P > < p > < / P > < p > video source: World Wide Web < / P > < p > < / P > < p > < / P > < p > < / P > < p > < / P > < p > after giving up the initial launch attempt earlier in the day, Sn10 launched at 6:14 p.m. EST and flew in the air for about 6 hours minute. Prior to the soft landing, Sn10 demonstrated several complex actions in midair to achieve a key milestone in Elon Musk's plan to build a fully reusable rocket system. < / P > < p > SpaceX Sn10 explodes after landing successfully! Full video exposure < p > < p > SpaceX has conducted two high-altitude flight tests before, and the Starship prototypes SN8 and sn9 were successfully launched, but exploded when trying to land. Different from them, Sn10 completed the landing overturning action on schedule, slowed down to make a soft landing, and then successfully landed on the concrete landing platform not far from the launch pad in a vertical attitude and intact, and stood still for several minutes before being engulfed by fireballs, which may be caused by fuel leakage. < / P > < p > SpaceX engineer and live host John insprucker said on the radio that the main goal of the launch test is to show the computer-controlled movement of the prototype's four pneumatic flaps before landing, which will guide the prototype to land. At the end of the climb, Sn10's three Raptor engines will gradually shut down to prepare for a brief free fall return. After horizontal repositioning, its abdomen will face the ground. < / P > < p > after completing the "belly flip" action, the three engines of Sn10 restart and adjust to the vertical attitude for soft landing. Sn10 landed slowly on the landing platform, but tilted slightly to one side. The live broadcast of SpaceX ended before Sn10 exploded, but other media cameras caught fireballs. The fireball threw the 16 story rocket back into the air and crashed on its side. < / P > < p > there is no doubt that SpaceX will investigate the cause of the explosion after a successful flight and landing test, but for the company, from the perspective of its most focused development, the test was obviously a great success. The next step in starship development may be to increase the altitude of these test flights until they finally reach orbit. < / P > < p > starship is the next generation, fully reusable Mars rocket system of SpaceX, which is designed to transport astronauts and 100 tons of cargo and play a role in the future Earth orbit, moon and final Mars missions. The latest three prototypes tested by SpaceX are early versions of the upper half of the ultimate starship version, and the lower half of the system is a reusable super heavy rocket booster, also powered by SpaceX's Raptor engine. < / P > < p > Elon Musk, founder and CEO of SpaceX, has always insisted that the Starship project is driven by a rapid iterative and prototyping development strategy. This means that the company builds and assembles multiple starship prototypes at the same time and fine tunes them in the process, rather than conducting months of analysis after each test and then continuing to build and test them. < / P > < p > < / P > < p > thanks to this strategy, Sn10 set out from boccachica factory on January 28, was sent to a test and launch facility 1600 meters away, and was launched only five weeks later, which is the fastest process from factory to launch so far. In addition, the low temperature test and static ignition test before Sn10 launch are also very smooth. (Xiaoxiao) < / P > < p > < b > related reading: < / b > < / P > < p > < / P > < p > < b > SpaceX prototype sn9 launched 10 km Explosion on landing on February 3, SpaceX, a US space exploration technology company, launched its starship prototype sn9 from boccachka, Texas on Tuesday, successfully sending it to an altitude of about 10 km as planned, but sn9 failed to put its posture right in time, leading to an explosion on landing. < / P > < p > 14 minutes full version! SpaceX Sn10 exploded during landing, and the launch of sn9 went smoothly. With the altitude climb, the two engines shut down as planned. Finally, when it reached the maximum altitude about four and a half minutes after launch, the third engine was shut down and the Starship began to roll over. During the long dive back to earth, the nose and tail used fins to help adjust and maintain the direction. < / P > < p > when sn9 approaches the ground, at least one engine restarts, and the rocket tries to adjust its posture according to the program, landing at the rear of the rocket hundreds of meters away from the launch pad. But it does not seem to have been able to turn vertically, and it is not clear whether a second engine is trying to ignite. In the end, the prototype crashed into the ground and exploded about six and a half minutes after taking off. < p > < p > fortunately, although sn9 and SN8 failed to land, the operation was quite accurate, and the prototype Sn10 of another starship installed on the nearby launch pad was not significantly damaged by the explosion. SpaceX is likely to test the Sn10 in the next few days, and the exact time of the test flight is unclear. However, if the cause of sn9 landing failure is found and corrected in time, Sn10 may be ready for flight by the end of this month. < / P > < p > this is the second landing explosion of SpaceX starship prototype during flight test. On December 9, 2020, SN8 conducted a test flight in Texas, USA. when it tried to land after six minutes of flight, it exploded due to impact and instantly turned into a big fireball. < / P > < p > according to the current assumption, SpaceX's future spacecraft will be composed of two parts. The first part is a 230 foot (70 meter) high super heavy rocket booster, which can produce 16 million pounds (about 7257 tons) of thrust, more than twice as much as NASA's Saturn 5 lunar rocket. At present, the first level prototype has not been completed.

第二级高160英尺（近49米），也被?
2023-03-22 10:04:29