分类: NASA·每日一图

嗨,瑞奇:这周是教师感谢周!

Astronaut Ricky Arnold is shown on his first spacewalk as a crewmember on STS-119. Before he joined the Astronaut Corps, Arnold was a teacher in classrooms all over the world, from Malaysia to Romania. Arnold also served aboard the International Space Station on Expedition 55/56. In this image, during the six-hour, seven-minute spacewalk, Arnold and fellow a...

肯尼迪总统授予艾伦·谢泼德美国航空航天局杰出服务勋章

On May 5, 1961, Alan Shepard – one of NASA’s first seven astronauts – became the first American in space. In this image, President John F. Kennedy, right, awards NASA’s Distinguished Service Medal to astronaut Shepard in a Rose Garden ceremony on May 8, 1961, at the White House. In the background are the other members of the Mercury Seven, NASA&#...

发现环双星系统

May the Fourth Be With You! When the first Star Wars movie was released in 1977, it featured the now-iconic two-sun, “circumbinary” planet Tatooine. At that time astronomers didn’t really know if such solar systems existed. Indeed, the first extra-solar planet wasn’t detected until the early 1990s. And, the first actual circumbinary planet was detected in 20...

毅力号火星车任务指导、导航和控制操作负责人斯瓦蒂·莫汉

Perseverance Mars rover mission commentator and guidance, navigation, and controls operations Lead Swati Mohan studies data on monitors in mission control, Thursday, Feb. 18, 2021, at NASA’s Jet Propulsion Laboratory in Pasadena, California. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient mi...

哈勃望远镜观测到一条耀眼的宇宙项链

The interaction of two doomed stars has created this spectacular ring adorned with bright clumps of gas ­– a diamond necklace of cosmic proportions. Fittingly known as the “Necklace Nebula,” this planetary nebula is located 15,000 light-years away from Earth in the small, dim constellation of Sagitta (the Arrow). A pair of tightly orbiting Sun-like stars pro...

太空发射系统核心级抵达肯尼迪航天中心

After its journey from NASA’s Stennis Space Center aboard the Pegasus barge, the core stage of the Space Launch System (SLS) rocket arrived at the agency’s Kennedy Space Center on April 27, 2021. Shown against a Florida sunrise, the core stage is the final piece of Artemis hardware to arrive at the spaceport. Engineers with Exploration Ground Systems and lea...

空间站上的持续园艺工作

Astronauts on the International Space Station recently enjoyed a fresh supply of leafy greens, thanks in large part to the efforts of Expedition 64 crew member Michael Hopkins. NASA’s SpaceX Crew-1 mission commander took the lead on conducting four Vegetable Production System (Veggie) experiments, with the last two wrapping up after an April 13 harvest. VEG-...

SpaceX奋进号载人龙飞船与空间站对接的景象

This image from April 24, 2021, shows the SpaceX Crew Dragon Endeavour as it approached the International Space Station less than one day after launching from Kennedy Space Center in Florida. The SpaceX Crew-2 astronauts, Commander Shane Kimbrough and pilot Megan McArthur with astronauts Akihiko Hoshide of the Japan Aerospace Exploration Agency and Thomas Pe...

恒星是如何爆炸的

Scientists have found fragments of titanium blasting out of a famous supernova. This discovery, made with NASA’s Chandra X-ray Observatory, could be a major step in pinpointing exactly how some giant stars explode. This work is based on Chandra observations of the remains of a supernova called Cassiopeia A, located in our galaxy about 11,000 light-years from...

SpaceX Crew-2发射

A SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft is seen to the right of the U.S. Capitol Building in Washington as it launches NASA’s SpaceX Crew-2 mission to the International Space Station with NASA astronauts Shane Kimbrough and Megan McArthur, ESA (European Space Agency) astronaut Thomas Pesquet, and Japan Aerospace Explorati...