标签: Image of the Day

在工程和技术概览中展示毅力号火星车

During the Mars Perseverance engineering and technology overview on Tuesday, Feb. 16, 2021, at NASA’s Jet Propulsion Laboratory, chief engineer Adam Steltzner displays a rover wheel. The Perseverance Mars rover is due to land on the Red Planet on Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission is astrobiology, including the search f...

帝国大厦为毅力号火星车亮灯

In New York City on Tuesday, Feb. 16, 2021, the Empire State Building is illuminated in red to celebrate this Thursday’s scheduled landing on Mars of NASA’s Perseverance rover. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geol...

天体生物学家肯达·林奇利用地球上的类似物在火星上寻找生命

If we find life on the Red Planet, we’ll have astrobiologists like Dr. Kennda Lynch to thank. Lynch is an astrobiologist and geomicrobiologist studying life in extreme environments on Earth as models for characterizing habitable environments and searching for biosignatures on other planetary bodies in our solar system and elsewhere. Prior to obtaining ...

伯纳德·哈里斯:第一位非裔美国人太空行走者

A physician, flight surgeon, and NASA astronaut, Bernard Harris became the first African American to perform a spacewalk in February 1995, during space shuttle Discovery’s STS-63 mission. This was a mission of firsts. It was also the first time a shuttle rendezvoused with the Russian Mir space station. View the Black History Month Image Gallery. Image ...

水晶般清澈:观察空间站上的晶体生长

There are more than 100,000 proteins in the human body. Every structure is different, and each one of them holds important information related to our health. Each protein has a unique and complicated structure that is closely related to its function. Therefore, revealing a protein’s structure leads to an understanding of its function. However, it is difficul...

煤袋星云

This stunning image captures a small region on the edge of the inky Coalsack Nebula, or Caldwell 99. Caldwell 99 is a dark nebula — a dense cloud of interstellar dust that completely blocks out visible wavelengths of light from objects behind it. The object at the center of the image is a (much smaller) protoplanetary nebula. The protoplanetary nebula phase ...

太平洋上空的日出

This view of a sunrise breaking through the Earth’s horizon was taken on Feb 3, 2021, as the International Space Station orbited 271 miles above the Pacific Ocean off the coast of southern Chile in South America. The space station, humanity’s only orbital laboratory, orbits the Earth about every 90 minutes, witnessing around 16 sunrises each day....

珍妮特·埃普斯:宇航员和航空航天工程师

In this image from 2018, NASA astronaut Jeanette Epps trains in a U.S. spacesuit at the Johnson Space Center. Epps is assigned to NASA’s Boeing Starliner-1 mission, the first operational crewed flight of Boeing’s CST-100 Starliner spacecraft on a mission to the International Space Station. She will join NASA astronauts Sunita Williams and Josh Cassada for a ...

这张照片摄于小麦哲伦星云的“翅膀”下

The tip of the “wing” of the Small Magellanic Cloud galaxy is dazzling in this 2013 view from NASA’s Great Observatories. The Small Magellanic Cloud, or SMC, is a small galaxy about 200,000 light-years way that orbits our own Milky Way spiral galaxy. The colors represent wavelengths of light across a broad spectrum. X-rays from NASA’s...

1971年2月4日,阿波罗14号到达月球轨道

Apollo 14 arrived in lunar orbit on Feb. 4, 1971, to prepare for the landing in and exploration of the Fra Mauro highlands. Apollo 14 launched carrying astronauts Commander Alan Shepard, lunar module pilot Edgar Mitchell, and command module pilot Stuart Roosa. Engineers had modified the spacecraft to prevent a recurrence of the accident that crippled Apollo ...