保护地球，探索宇宙，发现文明
2021年8月7日 Jezero Crater: Raised Ridges in 3D Image Credit: NASA, JPL-Caltech, Ingenuity Explanation: Get out your red-blue glasses and hover over the surface of Mars. Taken on July 24, the 3D color view is from the Mars Ingenuity Helicopter’s 10th flight above the Red Planet. Two images from Ingenuity’s color camera, both captured at an altitude ...
This infrared view of Jupiter’s icy moon Ganymede was obtained by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard NASA’s Juno spacecraft during its July 20, 2021, flyby. JIRAM’s infrared instrument developed this image during recent flybys of Jupiter’s mammoth moon to create this latest map, which comes out a decade after Juno’s Aug. 5, 20...
2021年8月6日 Stars and Dust Across Corona Australis Image Credit & Copyright: Vikas Chander Explanation: Cosmic dust clouds cross a rich field of stars in this telescopic vista near the northern boundary of Corona Australis, the Southern Crown. Less than 500 light-years away the dust clouds effectively block light from more distant background stars in the ...
On Aug. 5, 2012, NASA’s Curiosity Mars rover landed safely on the Red Planet. In this self-portrait from 2018, Curiosity sits atop Vera Rubin Ridge, which the rover had been investigating. Directly behind the rover is the start of a clay-rich slope scientists are eager to begin exploring. In the coming week, Curiosity will begin to climb this slope. No...
An army marches on its stomach, the saying goes, and astronauts fly on theirs. The success of any mission relies on plentiful, nutritious, and enjoyable food. A growing body of research on the space station looks at ways to improve the food supply as missions increase in length. Station crew members continue to work on two current food-related investigations...
2021年8月5日 Tycho and Clavius Image Credit & Copyright: Eduardo Schaberger Poupeau Explanation: South is up in this detailed telescopic view across the Moon’s rugged southern highlands. Captured on July 20, the lunar landscape features the Moon’s young and old, the large craters Tycho and Clavius. About 100 million years young, Tycho is the sh...
2021年8月4日 EHT Resolves Central Jet from Black Hole in Cen A Image Credit: Radboud University; CSIRO/ATNF/I.Feain et al., R.Morganti et al., N.Junkes et al.; ESO/WFI; MPIfR/ESO/APEX/A. Weiss et al.; NASA/CXC/CfA/R. Kraft et al.; TANAMI/C. Mueller et al.; EHT/M. Janssen et al. Explanation: How do supermassive black holes create powerful jets? To help find out,...
A United Launch Alliance Atlas V rocket with NASA’s Starliner spacecraft aboard is illuminated by spotlights on Monday, Aug. 2, 2021, as it sits on the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 mission at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight tes...
A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft aboard is seen as it is rolled out of the Vertical Integration Facility on Monday, Aug. 2, 2021, to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 mission at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Sta...
2021年8月3日 A Perseid Fireball and the Milky Way Image Credit & Copyright: Dandan Huang Explanation: It was bright and green and flashed as it moved quickly along the Milky Way. It left a trail that took 30 minutes to dissipate. Given the day, August 12, and the direction, away from Perseus, it was likely a small bit from the nucleus of Comet Swift-Tuttle...