保护地球，探索宇宙，发现文明
This image, taken on July 24, 1969, shows the Apollo 11 command module and the Mobile Quarantine Facility (MQF) photographed aboard the USS Hornet, prime recovery ship for the historic first lunar landing mission. The Apollo 11 crew, Neil Armstrong, Michael Collins and Buzz Aldrin, are already in the MQF. The Apollo 11 crew splashed down at 12:49 p.m. EDT, J...
Faintly in the distance, Comet C/2020 F3 NEOWISE (Comet NEOWISE) streaked across the sky above the tree line of Lone Pine Lake, located on the Mount Whitney Trail in the Eastern Sierra Nevada Mountains in California. The comet next returns in 6,800 years. Visiting from the distant parts of our Solar System, NEOWISE is characterized by a glowing tail and is v...
NASA is developing technologies to send humans to the Red Planet. The agency is working on an inflatable heat shield that allows the large surface area to take up less space in a rocket than a rigid one. The technology could land spacecraft on any planet with an atmosphere. It would expand and inflate before it enters the Martian atmosphere to land cargo and...
2020年7月24日 MAGIC NEOWISE Image Credit & Copyright: Urs Leutenegger Explanation: The multi-mirror, 17 meter-diameter MAGIC telescopes reflect this starry night sky from the Roque de los Muchachos European Northern Observatory on the Canary Island of La Palma. MAGIC stands for Major Atmospheric Gamma Imaging Cherenkov and the telescopes can see the brief ...
2020年7月23日 Fairytale NEOWISE Image Credit & Copyright: Stephane Guisard (Los Cielos de America, TWAN) Explanation: Comet dust falls through a twilight sky in this dream-like scene, but it’s not part of a fairytale movie. Still, Castle Neuschwanstein, nestled in the Bavarian Alps, did inspire Disneyland’s Sleeping Beauty Castle. Captured on J...
On July 21, 1969, command and service module pilot Michael Collins photographed this close-up view of the docking target on the Apollo 11 Lunar Module from the Command Module. The image was captured during docking in lunar orbit as Mission Commander Neil Armstrong and lunar module pilot Buzz Aldrin returned from the lunar surface. Collins had remained in lun...
2020年7月22日 The Structured Tails of Comet NEOWISE Image Credit & Copyright: Zixuan Lin (Beijing Normal U.) Explanation: What is creating the structure in Comet NEOWISE’s tails? Of the two tails evident, the blue ion tail on the left points directly away from the Sun and is pushed out by the flowing and charged solar wind. Structure in the ion tail ...
On July 20, 1969, two American astronauts made history by landing on the surface of another celestial body. This image is a close-up view of the plaque, which Apollo 11 Commander Neil Armstrong and lunar module pilot Buzz Aldrin left on the Moon in commemoration of the historic lunar landing mission. The plaque was attached to the ladder on the landing gear ...
7月21日 Iron in the Butterfly Nebula Image Credit: NASA, ESA, Hubble; Processing & License: Judy Schmidt Explanation: Can stars, like caterpillars, transform themselves into butterflies? No, but in the case of the Butterfly Nebula — it sure looks like it. Though its wingspan covers over 3 light-years and its estimated surface temperature exceeds 200...
2020年7月20日 Comet NEOWISE and Nebulae Image Credit & Copyright: Jarek Oszywa Explanation: Would you brave wild animals to photograph this sky? One astrophotographer did — and we all get to reap the rewards. First, thousands of stars were visible with many of the brightest impressively blue. Next, several red-glowing nebulae were discernible, includ...