保护地球，探索宇宙，发现文明
NASA’s Hubble Space Telescope can resolve individual stars in the densely-packed cores of globular clusters like NGC 2210. Imagine credit: ESA/Hubble & NASA, A. Sarajedini This striking Hubble Space Telescope image shows the densely packed globular cluster known as NGC 2210, which is situated in the Large Magellanic Cloud (LMC). The LMC lies about 157,0...
2023年12月10日 Big Dipper over Pyramid Mountain Image Credit & Copyright: Steve Cullen Explanation: When did you first learn to identify this group of stars? Although they are familiar to many people around the world, different cultures have associated this asterism with different icons and folklore. Known in the USA as the Big Dipper, the stars are part o...
2023年12月9日 Pic du Pleiades Image Credit & Copyright: Jean-Francois Graffand Explanation: Near dawn on November 19 the Pleiades stood in still dark skies over the French Pyrenees. But just before sunrise a serendipitous moment was captured in this single 3 second exposure; a bright meteor streak appeared to pierce the heart of the galactic star cluster. ...
2023年12月8日 Vega and Comet 12P/Pons-Brooks Image Credit & Copyright: Dan Bartlett Explanation: On December 4, periodic Comet 12P/Pons-Brooks shared this telescopic field of view with Vega, alpha star of the northern constellation Lyra. Fifth brightest star in planet Earth’s night, Vega is some 25 light-years distant while the much fainter comet was...
On Nov. 16, 2023, NASA astronauts Reid Wiseman (left) and Christina Koch (middle) of NASA and CSA (Canadian Space Agency) astronaut Jeremy Hansen (second from left) view the core stage for the Space Launch System (SLS) rocket at NASA’s Michoud Assembly Facility in New Orleans. The three astronauts, along with NASA’s Victor Glover, will launch atop the rocket...
2023年12月7日 Orion and the Ocean of Storms Image Credit: NASA, Artemis 1 Explanation: On December 5, 2022, a camera on board the uncrewed Orion spacecraft captured this view as Orion approached its return powered flyby of the Moon. Beyond one of Orion’s extended solar arrays lies dark, smooth, terrain along the western edge of the Oceanus Procellarum. Pr...
The mated Russian-built Zarya (left) and U.S.-built Unity modules are backdropped against the blackness of space and Earth’s horizon shortly after leaving Endeavour’s cargo bay on Dec. 13, 1998. A few days earlier, on Dec. 6, 1998, the space shuttle Endeavour, mission STS-88, launched from NASA’s Kennedy Space Center in Florida carrying the Unity connecting ...
想亲眼看看小行星？小行星灶神星在这个月到达冲日点，这意味着它位于地球与太阳的正对面。这也是灶神星最接近地球的时候，所以它最亮也最容易观测到。
2023年12月6日 Stars Versus Dust in the Carina Nebula Image Credit: NASA, ESA, Hubble Heritage (STScI/AURA); Processing: Franco Meconi (Terraza al Cosmos) Explanation: It’s stars versus dust in the Carina Nebula and the stars are winning. More precisely, the energetic light and winds from massive newly formed stars are evaporating and dispersing the dusty ...
The Moon, left, Saturn, upper right, and Jupiter, lower right, are seen after sunset from Washington, DC, on Dec. 17, 2020. The two planets drew closer to each other in the sky as they headed towards a “great conjunction” on Dec. 21, where the two giant planets appeared a tenth of a degree apart. View and download the full image here. See skywatching highlig...