哈勃拍摄到一对相互作用的星系

哈勃拍摄到一对相互作用的星系

ByNASA中文

The two interacting galaxies making up the pair known as Arp-Madore 608-333 seem to float side by side in this image from the NASA/ESA Hubble Space Telescope. Though they appear serene and unperturbed, the two are subtly warping one another through a mutual gravitational interaction that is disrupting and distorting both galaxies. Hubble’s Advanced Camera for Surveys captured this drawn-out galactic interaction. The interacting galaxies in Arp-Madore 608-333 are part of an effort to build up an archive of interesting targets for more detailed future study with Hubble, ground-based telescopes, and the NASA/ESA/CSA James Webb Space Telescope. To build up this archive, astronomers scoured existing astronomical catalogues for a list of targets spread throughout the night sky. They hoped to include objects already identified as…

太阳在新的一月有强烈的耀斑环

太阳在新的一月有强烈的耀斑环

ByNASA中文

The Sun released an X1 solar flare, a powerful burst of energy, captured by our Solar Dynamics Observatory (SDO) on Oct. 2, 2022. X-class are the most intense flares, while the number provides more information about its strength. For instance, an X1 flare is half as strong as an X2. While solar flares can affect radio communications, power grids, and navigation signals, harmful radiation from a solar flare cannot pass through Earth’s atmosphere to physically affect humans on the ground. By studying flares and how they affect our planet and nearby space, the SDO helps us to better prepare for and mitigate these potential disruptions. Learn more about solar flares. Image Credit: NASA/SDO 太阳释放了一次X1太阳耀斑，这是一次强大的能量爆发，由我们的太阳动力学天文台(SDO)于2022年10月2日捕获。X级是最强烈的耀斑，而数字提供了更多关于其强度的信息。例如，X1耀斑的强度是X2耀斑强度的一半。虽然太阳耀斑会影响无线电通信、电网和导航信号，但太阳耀斑的有害辐射无法穿过地球大气层，对地面上的人类产生物理影响。通过研究耀斑以及它们如何影响我们的星球和附近的太空，SDO帮助我们更好地准备和减轻这些潜在的干扰。 了解更多关于太阳耀斑的信息。 图片来源：NASA/SDO

NASA的SpaceX Crew-5任务投射出长曝光光束

NASA的SpaceX Crew-5任务投射出长曝光光束

ByNASA中文

In this 20-second exposure from Oct. 5, 2022, a SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft is launched on NASA’s SpaceX Crew-5 mission from our Kennedy Space Center in Florida to the International Space Station (ISS). This is the fifth crew rotation mission of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the ISS as part of the agency’s Commercial Crew Program. The crew successfully docked and entered the space station on Oct. 6, 2022. Aboard, the crew will conduct new scientific studies to prepare for human exploration beyond low-Earth orbit and benefit life on Earth. Image Credit: NASA/Joel Kowsky 在这张2022年10月5日20秒的照片中，NASA的SpaceX Crew-5任务从佛罗里达州肯尼迪航天中心发射到国际空间站（ISS），发射了一枚搭载该公司载人龙飞船的SpaceX猎鹰9号火箭。这是SpaceX载人龙飞船和猎鹰9号火箭第五次向国际空间站执行机组人员轮换任务，是该机构商业机组人员计划的一部分。2022年10月6日，机组人员成功对接并进入空间站。在太空中，机组人员将进行新的科学研究，为人类探索低地球轨道做好准备，造福地球上的生命。 影像来源：NASA/Joel Kowsky

来自瑟琳娜·奥南-钱塞勒的固体科学

来自瑟琳娜·奥南-钱塞勒的固体科学

ByNASA中文

Astronaut Serena Auñón-Chancellor installs samples for the Microgravity Investigation of Cement Solidification (MICS) experiment aboard the International Space Station (ISS) in this image from Nov. 27, 2018. MICS explored how cement solidified in microgravity, important research for constructing safe space habitats on the Moon or Mars and for improving cement processing on Earth. Dr. Auñón-Chancellor was selected in July 2009 as one of 14 members of the 20th NASA astronaut class. During Astronaut Candidate Training, she spent 2 months in Antarctica from 2010 to 2011 searching for meteorites as part of the Antarctic Search for Meteorites expedition. Most of that time was spent living on the ice 200 nautical miles from the South Pole. Her first flight was to the ISS, where she logged 197…

宇航员妮可·曼在T-38训练

宇航员妮可·曼在T-38训练

ByNASA中文

Astronaut Nicole Mann sits inside a T-38 trainer jet at Ellington Field in Houston, Texas, in this image from Nov. 15, 2018. She served as the T-38 safety and training officer; T-38s are used for pilot proficiency and training for astronauts. Selected as an astronaut candidate in June 2013, Mann will be the first Indigenous woman from NASA in space. In her first spaceflight, she is scheduled to launch to the International Space Station as commander of NASA’s SpaceX Crew-5 mission aboard the SpaceX Crew Dragon spacecraft no earlier than Oct. 5, 2022. As mission commander, she will be responsible for all phases of flight, from launch to re-entry. She will serve as an Expedition 68 flight engineer aboard the station. Watch our SpaceX Crew-5…

DART的倒数第二视图

DART的倒数第二视图

ByNASA中文

This is the last complete image of the asteroid Dimorphos, as seen by our Double Asteroid Redirection Test (DART) two seconds before impact. The Didymos Reconnaissance and Asteroid Camera for Optical navigation (DRACO) imager aboard captured a 100-foot-wide patch of the asteroid. The DART spacecraft streamed these images from its DRACO camera back to Earth in real time as it approached the asteroid. DART successfully impacted its target on Monday, Sept. 26, 2022, in the world’s first planetary defense technology demonstration. See more from the moments just before DART’s intentional crash. Image Credit: NASA/Johns Hopkins APL 这是小行星Dimorphos的最后一张完整图像，由我们的双小行星重定向测试（DART）在撞击前两秒拍摄。航天器上的Didymos侦察和小行星光学导航相机（DRACO）成像仪拍摄了这个100英尺宽的小行星区域。 DART航天器在接近小行星时，将这些图像从DRACO相机实时传回地球。2022年9月26日，星期一，DART成功撞击目标，这是世界上第一次行星防御技术演示。 查看更多关于DART故意撞击前的瞬间。 图片来源：NASA/Johns Hopkins APL

海王星在近红外线中炫耀它的行星环

海王星在近红外线中炫耀它的行星环

ByNASA中文

On Sept. 21, 2022, the James Webb Space Telescope delivered the clearest view of Neptune’s rings in more than 30 years. Webb’s Near-Infrared Camera (NIRCam) captured several bright, narrow rings as well as the planet’s fainter dust bands. Voyager 2 was the last to detect some of these rings during its flyby in 1989, but this is the first time we have an infrared image of them. Since NIRCam images objects in the near-infrared range from 0.6 to 5 microns, Neptune does not appear blue to Webb. In fact, the methane gas so strongly absorbs red and infrared light that the planet is quite dark at these near-infrared wavelengths, except where high-altitude clouds are present. Those methane-ice clouds are prominent as bright streaks and spots,…

艾伦·奥乔亚穿上宇航服

艾伦·奥乔亚穿上宇航服

ByNASA中文

Astronaut Ellen Ochoa, STS-110 flight engineer, wears a launch and entry suit as part of water survival training in the Neutral Buoyancy Laboratory at the Sonny Carter Training Facility near NASA’s Johnson Space Center in Houston, Texas in 2001. STS-110 was the 13th shuttle mission to visit the International Space Station (ISS). The mission included 4 spacewalks, furthering the construction of the ISS. Dr. Ochoa was selected by NASA in 1990 as the first female Hispanic astronaut and became the first Hispanic astronaut to fly to the International Space Station. Ochoa was named as the deputy director of the agency’s Johnson Space Center’s in 2007, then as the Center’s first Hispanic director and its second female director in 2013. She served in that position until…

DART团队庆祝碰撞成功

DART团队庆祝碰撞成功

ByNASA中文

In this image from Sept. 26, 2022, the Double Asteroid Redirection Test (DART) team, Dr. Thomas Zurbuchen, and guests at Johns Hopkins University Applied Physics Laboratory cheer as they receive confirmation of DART’s collision with the asteroid Dimorphos—the world’s first planetary defense technology demonstration. During the spacecraft’s final moments before impact, its Didymos Reconnaissance and Asteroid Camera for Optical navigation imager took four images capturing its terminal approach as Dimorphos increasingly fills the field of view. The investigation team will now observe Dimorphos using ground-based telescopes to confirm that DART’s impact altered the asteroid’s orbit around Didymos. Researchers expect the impact to shorten Dimorphos’ orbit by about 1%, or roughly 10 minutes; precisely measuring how much the asteroid was deflected is one of the primary…

金色DART的星系开箱

金色DART的星系开箱

ByNASA中文

Technicians prepare to move NASA’s Double Asteroid Redirection Test (DART) spacecraft from a shipping container onto a work stand inside the Astrotech Space Operations Facility at Vandenberg Space Force Base in California in this image from Oct. 4, 2021. DART was launched on Nov. 23, 2021, aboard a SpaceX Falcon 9 rocket from Vandenberg. The spacecraft will intentionally smash into the moonlet Didymos on Sept. 26, 2022, to see if this method of asteroid deflection—known as the kinetic impactor technique—would be a viable way to protect our planet if an asteroid on a collision course with Earth were discovered in the future. Image Credit: USSF 30th Space Wing/Aaron Taubm 这张照片摄于2021年10月4日，技术人员准备将NASA的双小行星重定向测试（DART）航天器从一个运输集装箱移到位于加利福尼亚州范登堡太空部队基地的Astrotech太空运营设施内的工作台上。 DART于2021年11月23日由范登堡的SpaceX猎鹰9号火箭发射。该航天器将于2022年9月26日故意撞击小行星Didymos，以了解如果未来发现一颗小行星与地球发生碰撞，这种被称为动力学撞击器技术的小行星偏转方法是否是保护我们星球的可行方法。 影像来源：USSF 30th Space Wing/Aaron Taubm