保护地球，探索宇宙，发现文明
An Alta-X drone operated by NASA researchers flies over NASA Langley’s City Environment Range Testing for Autonomous Integrated Navigation (CERTAIN) as part of the Advanced Air Mobility project’s High Density Vertiplex (HDV) testing in April 2022. HDV is developing the necessary systems to enable urban drone flights that travel beyond visual sight. Lea...
2022年7月21日 Messier 10 and Comet Image Credit & Copyright: German Penelas Perez Explanation: Imaged on July 15 2022, comet C/2017 K2 (PanSTARRS) had a Messier moment, sharing this wide telescopic field of view with globular star cluster Messier 10. Of course M10 was cataloged by 18th century comet hunter Charles Messier as the 10th object on his list of ...
The Apollo 11 crew simulates deploying and using lunar tools on the surface of the Moon during a training exercise on April 22, 1969. Lunar module pilot Buzz Aldrin (left) uses a scoop and tongs to pick up a soil sample. Mission Commander Neil Armstrong holds a bag to receive the sample. In the background is a Lunar Module mockup. On July 16, 1969, the crew ...
2022年7月20日 Jupiter and Ring in Infrared from Webb Image Credit: NASA, ESA, CSA, STScI; Processing & License: Judy Schmidt Explanation: Why does Jupiter have rings? Jupiter’s main ring was discovered in 1979 by NASA’s passing Voyager 1 spacecraft, but its origin was then a mystery. Data from NASA’s Galileo spacecraft that orbited Jupite...
Supernovas are the explosive deaths of the universe’s most massive stars. In death, these objects blast powerful waves into the cosmos, destroying much of the dust surrounding them. This 2007 composite from NASA’s Spitzer Space Telescope and Chandra X-ray Observatory shows the remnant of such an explosion, known as N132D, and the environment it i...
2022年7月19日 Pleiades over Half Dome Image Credit & Copyright: Dheera Venkatraman Explanation: Stars come in bunches. The most famous bunch of stars on the sky is the Pleiades, a bright cluster that can be easily seen with the unaided eye. The Pleiades lies only about 450 light years away, formed about 100 million years ago, and will likely last about ano...
This tunnel view looking up from Level 5 is of the Zero Gravity Facility at Lewis Research Center, now known as John H. Glenn Research Center at Lewis Field, and was taken in Cleveland, Ohio, on Sept. 12, 1966. The tower dropped 460 feet and allowed scientists to perform 5.18 seconds of microgravity research. By comparison, the Washington Monument is 555 fee...
2022年7月18日 Stephan’s Quintet from Webb, Hubble, and Subaru Image Credit: Webb, Hubble, Subaru; NASA, ESA, CSA, NOAJ, STScI; Processing & Copyright: Robert Gendler Explanation: OK, but why can’t you combine images from Webb and Hubble? You can, and today’s featured image shows one impressive result. Although the recently launched James ...
A SpaceX Falcon 9 rocket carrying the Dragon capsule soars upward after lifting off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on July 14, 2022, on the company’s 25th Commercial Resupply Services mission to the International Space Station. Liftoff was at 8:44 p.m. EDT. Dragon will deliver more than 5,800 pounds of cargo, including a va...
2022年7月17日 Europa and Jupiter from Voyager 1 Image Credit: NASA, Voyager 1, JPL, Caltech; Processing & License: Alexis Tranchandon / Solaris Explanation: What are those spots on Jupiter? Largest and furthest, just right of center, is the Great Red Spot — a huge storm system that has been raging on Jupiter possibly since Giovanni Cassini’s li...