分类: NASA·每日一图

探测来自天王星的X射线

Astronomers have detected X-rays from Uranus for the first time, using NASA’s Chandra X-ray Observatory, as shown in this image from March 2021. This result may help scientists learn more about this enigmatic ice giant planet in our solar system. Uranus is the seventh planet from the Sun and has two sets of rings around its equator. The planet, which has fou...

比尔·纳尔逊局长发表了他的第一次NASA演讲

NASA Administrator Bill Nelson talks to the agency’s workforce during his first State of NASA event Wednesday, June 2, 2021, at NASA Headquarters Mary W. Jackson Building in Washington. Nelson remarked on his long history with NASA, and among other topics, discussed the agency’s plans for future Earth-focused missions to address climate change and a robotic ...

NASA数字战略家安德烈斯·阿尔梅达 (Andres Almeida)

When NASA digital strategist Andres Almeida joined Twitter in 2009, one of the first accounts he followed was NASA. “I knew they were doing NASA ‘Tweetups’ (now called Socials) where members of the public could apply, go behind the scenes of a NASA facility and potentially attend a launch. “I was selected for the STS-135 Tweetup — the final launch of t...

在新的模拟中,黑洞的吸积盘发出光芒

Astronomers continue to develop computer simulations to help future observatories better home in on black holes, the most elusive inhabitants of the universe. Though black holes likely exist abundantly in the universe, they are notoriously hard to see. Scientists did not capture the first radio image of a black hole until 2019, and only about four dozen blac...

哈勃拍摄到一个迷人的螺旋星系

This image shows the spiral galaxy NGC 5037, in the constellation of Virgo. First documented by William Herschel in 1785, the galaxy lies about 150 million light-years away from Earth. Despite this distance, we can see the delicate structures of gas and dust within the galaxy in extraordinary detail. This detail is possible using Hubble’s Wide Field Camera 3...

磁化线编织出壮观的银河系挂毯

过热的气体和磁场在银河系的中心编织着能量的织锦。这幅新的宇宙杰作的新图像是由美国宇航局钱德拉x射线天文台和南非的MeerKAT射电望远镜的巨大数据拼接而成的。 银河系中心的新全景图是建立在之前钱德拉和其他望远镜的观测基础上的。与以前的成像活动相比,这个最新版本将钱德拉的高能视野扩展到了银河系平面的上方和下方,也就是银河系大多数恒星所在的圆盘。在我们的主图中,来自钱德拉的X射线显示为橙色、绿色、蓝色和紫色,显示不同的X射线能量,而来自MeerKAT的无线电数据则显示为淡紫色和灰色。图片中的主要特征以标注的方式显示。 有一条线特别引人注意,因为它的X射线和无线电发射交织在一起。它垂直于银河系的平面,长约20光年,,但宽度只有它的百分之一。 麻萨诸塞大学阿默斯特分校(University of Massachuset...

乌贼和其他研究人员正向空间站进发。是的,乌贼!

In just over a week on June 3, 2021, these tiny squids will head to space along with many other scientific experiments aboard SpaceX’s 22nd cargo resupply mission to the International Space Station. The squids are a part of the UMAMI study which examines the effects of spaceflight on interactions between beneficial microbes and their animal hosts. UMAMI stan...

火星坚毅号表面作业经理黄宝玲

Perseverance Mars rover Strategic Mission Manager Pauline Hwang, gave remarks during the Perseverance rover initial surface checkout briefing on Feb. 19, 2021, at NASA’s Jet Propulsion Laboratory. The Perseverance Mars rover landed on the Red Planet on Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the sear...

SpaceX韧性号载人龙飞船

The SpaceX Crew Dragon Resilience is pictured shortly before undocking from the International Space Station’s Harmony module’s space-facing international docking adapter. Resilience splashed down in the Gulf of Mexico off the coast of Panama City, Florida, at 2:56 a.m. EDT May 2, 2021, returning SpaceX Crew-1 – NASA astronauts Shannon Walker, Vic...

为未来的阿耳忒弥斯月球任务启动RS-25引擎测试

NASA conducted its fourth RS-25 single-engine hot fire test of the year on May 20, 2021, a continuation of its seven-part test series to support development and production of engines for the agency’s Space Launch System (SLS) rocket on future missions to the Moon. The engine was fired for more than 8 minutes (500 seconds) on the A-1 Test Stand at Stennis Spa...