保护地球，探索宇宙，发现文明
NASA astronaut Kjell Lindgren, right, speaks to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center, ahead of SpaceX’s Crew-4 mission. With him are crewmates NASA astronaut Bob Hines, left, European Space Agency astronaut Samantha Cristoforetti, second from left, and NASA astronaut Jessica Watkins, second fro...
In this image from April 10, 2022, sunlight glints off the Atlantic Ocean in this photograph from taken by the crew of the International Space Station as it orbited 262 miles above. Every 24 hours, the space station makes 16 orbits of Earth, traveling through 16 sunrises and sunsets. Learn More International Space Station Facts and Figures Image Credit: NASA...
Engineers and technicians are continuing to prepare for the Artemis I wet dress rehearsal test, which is slated to begin on April 1 and conclude on April 3. This close-up view shows the Space Lanch System rocket for Artemis I inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The wet dress rehearsal will begin at 5 p.m. EDT on ...
NASA astronaut and SpaceX Crew-4 pilot Bob Hines is pictured during a training session inside a mockup of the Crew Dragon vehicle at SpaceX Headquarters in Hawthorne, California A pair of news conferences on Thursday, March 31, at NASA’s Johnson Space Center in Houston will highlight the agency’s upcoming SpaceX Crew-4 mission to the International Space Stat...
Record-setting NASA astronaut Mark Vande Hei, left, and cosmonauts Anton Shkaplerov, center, and Pyotr Dubrov of Rosccosmos are seen inside their Soyuz MS-19 spacecraft after landing in a remote area near the town of Zhezkazgan, Kazakhstan, Wednesday, March 30, 2022. Vande Hei and Dubrov are returning to Earth after logging 355 days in space as members of Ex...
NASA astronaut Mark Vande Hei arrived at the International Space Station on April 9, 2021, and will return home March 30, 2022, after spending 355 days in low-Earth orbit. This duration breaks the previous record, held by retired NASA astronaut Scott Kelly, by 15 days. Vande Hei will return in a Soyuz spacecraft as scheduled alongside cosmonauts Pyotr Dubrov...
In this image from August 2021, NASA astronaut Mark Vande Hei sits and reads while aboard the International Space Station. Vande Hei made it into record books on Tuesday, March 15, 2022: He broke the record for the most consecutive days in space by an American explorer. Vande Hei arrived at the space station on April 9, 2021, and is expected to return home M...
This image from 2020 shows a flame that was one of many ignited as part of the Flame Design investigation inside of Combustion Integrated Rack (CIR) to investigate the amount of soot that is produced in different conditions. The yellow spots are soot clusters that glow yellow when hot. These clusters grow larger in microgravity than on Earth because the soot...
由于研究和标准已经清除了衣服、床和家具中高度易燃的物质，美国人现在在家里比几十年前更安全。NASA在为宇航服和航天器选择材料时，依靠类似的研究和标准来保护宇航员。 但是火在太空中的表现不同。重力和气流的变化会改变它的传播方式，使其更难熄灭。那么，工程师们该如何为只有12人去过的月球或甚至没有人去过的火星设计防火安全住宅呢？他们如何在这些鲜为人知的环境中研究可燃性？ 固体燃料点火与灭火（SoFIE）项目是诺斯罗普·格鲁曼公司向国际空间站进行的第17次货物再补给任务中发射的一组实验，它可能为深入了解太空火灾开辟道路。SoFIE将在空间站的燃烧集成机架上运行，该机架设有一个可以进行安全燃烧实验的腔室。 “由于NASA计划在月球和火星等其他行星体上设立前哨站，我们需要能够在风险最小的情况下生活在那里。”位于克利夫兰的N...
NASA astronaut Mark Vande Hei peers at the Earth below from inside the seven-windowed cupola, the International Space Station’s window to the world. Just outside the cupola is the Soyuz MS-19 crew ship docked to the Rassvet module. Vande Hei is slated to become the U.S. record holder for most time spent in space. He arrived on station on April 9, 2021,...