Foreign media reported that if weather conditions permit, residents on the east coast of the United States are expected to see two rockets crossing the night sky at the same time within about 30 minutes before going to bed on Tuesday night. The first is SpaceX’s Falcon 9 rocket, which will put a new U.S. Air Force GPS satellite into orbit. The launch window is between 18:55-19:10 Pacific time (21:55-22:10 EDT), starting from Cape Canaveral 39A in Florida. < / P > < p > and then there’s the Northrop Gruman Antares Antares rocket, which is scheduled to launch from Wallace Island, Virginia, at 19:27 Pacific time (22:27 U.S. Eastern time) to transport the Cygnus cargo spacecraft to the international space station. It is reported that SpaceX is carrying a third-generation GPS satellite from the US air force, which is also the fourth series of satellites developed by Lockheed Martin company to enter orbit. < / P > < p > the mission uses a new rocket (rather than a recycled version), and SpaceX will try to land Falcon 9 on an unmanned barge in the Atlantic Ocean after putting the satellite into orbit. < / P > < p > followed by the Antares rocket, which will take the Cygnus spacecraft to the international space station, including equipment, supplies and experimental equipment weighing up to 4 tons. After a three-day journey, it will dock with the international space station on October 3. < / P > < p > the Cygnus spacecraft will remain in the international space station for some time to burn down when it returns to earth’s atmosphere in mid December. Before the end of life, NASA will carry out an experiment to ignite a series of controlled small flames inside the spacecraft and record the combustion data of different substances in space. < / P > < p > as for the Antares rocket, it will also burn and fall into the Atlantic Ocean after launch. For Florida residents, such scenes may be common. But for the residents of Virginia, the night scene is quite worth looking forward to. < / P > < p > it is said that it can be seen from Georgia to the coast of Rhode Island. If you are interested, please refer to the guide shared by NASA for the best viewing angle and viewing time. Chinese version of K-car: reading a10e design drawing exposure