保护地球，探索宇宙，发现文明
Credit：NASA NASA宇航员克里斯·卡西迪（Chris Cassidy）和鲍勃·本肯（Bob Behnken）于7月16日再次出到国际空间站（InternationalSpace Station）之外，为空间站的一个电源通道装上了新的锂离子电池和相关硬件。本次太空行走是为期三年半的空间站电源系统升级中仅剩的几次之一。 最近，NASA摄影师比尔·英格尔斯（Bill Ingalls）在华盛顿特区的清晨上空中拍下了新智彗星（CometNEOWISE）的照片。这颗彗星由NASA研究近地天体的近地天体广域红外线巡天探测卫星（Near-Earth Object Wide-field Infrared Survey Explorer，NEOWISE）任务发现并以此命名，在特定的时间段内肉眼可见，NASA的多个探测器...
On July 17, 1975, something momentous happened: two Cold War rivals met in space. When their respective spacecraft rendezvoused and docked, a new era of cooperative ventures in space began. For more than two decades, American astronauts and Russian cosmonauts have been regularly living and working together in Earth orbit, first in the Shuttle-Mir program, an...
At 9:32 a.m. EDT on July 16, 1969, the Apollo 11 mission launched via a Saturn V rocket with Commander Neil Armstrong, command module pilot Michael Collins and lunar module pilot Buzz Aldrin from Kennedy Space Center’s Launch Complex Pad 39A. In a little more than eight years after the flights of Yuri Gagarin and Alan Shepard, followed quickly by Presi...
2020年7月19日 Rotating Moon from LRO Video Credit: NASA, LRO, Arizona State U. Explanation: No one, presently, sees the Moon rotate like this. That’s because the Earth’s moon is tidally locked to the Earth, showing us only one side. Given modern digital technology, however, combined with many detailed images returned by the Lunar Reconnaissance Orbi...
2020年7月18日 Finding NEOWISE Image Credit & Copyright: Tom Masterson Explanation: If you can see the stars of the Big Dipper, you can find comet NEOWISE in your evening sky tonight. After sunset look for the naked-eye comet below the bowl of the famous celestial kitchen utensil of the north and above your northwestern horizon. You’re looking for a f...
2020年7月17日 NEOWISE of the North Image Credit & Copyright: Bill Peters Explanation: After local midnight on July 14 comet NEOWISE was still above the horizon for Goldenrod, Alberta, Canada, just north of Calgary, planet Earth. In this snapshot it makes for an awesome night with dancing displays of the northern lights. The long-tailed comet and auroral di...
2020年7月16日 The Long Tails of Comet NEOWISE Image Credit & Copyright: Petr Horalek Explanation: This Comet NEOWISE (C/2020 F3) now sweeps through our fair planet’s northern skies. Its long tails stretch across this deep skyview from Suchy Vrch, Czech Republic. Recorded on the night of July 13/14, the composite of untracked foreground and tracked an...
The crew snapped this starry nighttime shot of Rio de Janeiro and surrounding cities on the Brazilian coast, as the International Space Station orbited above São Paolo. Whhile the crew observes Earth from more than 200 miles above the planet, astronaut Bob Behnken and Commander Chris Cassidy also are concentrating on the final set of power upgrade spacewalks...
In this image, NASA’s Mars 2020 Perseverance rover waits to be lifted onto its Atlas V launch vehicle at the Cape Canaveral Air Force Station in Florida on July 7, 2020. The Mars 2020 mission is part of a larger program that includes missions to the Moon as a way to prepare for human exploration of the Red Planet. Charged with returning astronauts to t...
2020年7月15日 Comet NEOWISE over the Swiss Alps Image Credit & Copyright: Philipp Salzgeber, foto-webcam.eu; Text: Adam Block Explanation: Comet NEOWISE has been wowing photographers around much of the world during dawn and dusk, at the margins of day and night. For the most northern residents of planet Earth, however, the comet circles the North Star and ...