保护地球，探索宇宙，发现文明
2021年9月10日 Rosetta’s Comet in View Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) Explanation: Faint comet Churyumov-Gerasimenko (67P) sweeps past background stars in the constellation Taurus and even fainter distant galaxies in this telescopic frame from September 7. About 5 years ago, this comet’s 4 kilometer spanning, dou...
2021年9月9日 M16 Cose Up Image Credit & Copyright: Martin Pugh Explanation: A star cluster around 2 million years young surrounded by natal clouds of dust and glowing gas, M16 is also known as The Eagle Nebula. This beautifully detailed image of the region adopts the colorful Hubble palette and includes cosmic sculptures made famous in Hubble Space Telesco...
2021年9月8日 The Deep Sky Toward Andromeda Image Credit & License: Stefan Ziegenbalg Explanation: What surrounds the Andromeda galaxy? Out in space, Andromeda (M31) is closely surrounded by several small satellite galaxies, and further out it is part of the Local Group of Galaxies — of which our Milky Way galaxy is also a member. On the sky, however,...
2021年9月7日 NGC 520: Colliding Galaxies from Hubble Image Credit: NASA, ESA, Hubble; Processing & Copyright: William Ostling (The Astronomy Enthusiast) Explanation: Is this one galaxy or two? The jumble of stars, gas, and dust that is NGC 520 is now thought to incorporate the remains of two separate disk galaxies. A defining component of NGC 520 — a...
2021年9月6日 Firefly Milky Way over Russia Image Credit & Copyright: Anton Komlev Explanation: It started with a pine tree. The idea was to photograph a statuesque pine in front of the central band of our Milky Way Galaxy. And the plan, carried out two months ago, was successful — they both appear prominently. But the resulting 3-frame panorama captu...
2021年9月5日 Earth and Moon Image Credit: NASA, JPL, Galileo Project; Processing & License: Gordan Ugarkovic Explanation: The Earth and Moon are rarely photographed together. One of most spectacular times this occurred was about 30 years ago when the Jupiter-bound Galileo spacecraft zoomed past our home planetary system. Then, robotic Galileo watched from ...
2021年9月4日 A Falcon 9 Nebula Image Credit & Copyright: Dennis Huff Explanation: Not the Hubble Space Telescope’s latest view of a distant galactic nebula, this illuminated cloud of gas and dust dazzled early morning spacecoast skygazers on August 29. The snapshot was taken at 3:17am from Space View Park in Titusville, Florida. That’s about 3 ...
2021年9月3日 NGC 7023: The Iris Nebula Image Credit & Copyright: Satwant Kumar Explanation: These cosmic clouds have blossomed 1,300 light-years away, in the fertile starfields of the constellation Cepheus. Called the Iris Nebula, NGC 7023 is not the only nebula to evoke the imagery of flowers. Still, this deep telescopic image shows off the Iris Nebula...
2021年9月2日 M51: The Whirlpool Galaxy Image Credit & Copyright: Josep Drudis Explanation: Find the Big Dipper and follow the handle away from the dipper’s bowl until you get to the last bright star. Then, just slide your telescope a little south and west and you’ll come upon this stunning pair of interacting galaxies, the 51st entry in Charles...
2021年9月1日 Dancing Ghosts: Curved Jets from Active Galaxies Image Credit: Jayanne English & Ray Norris, EMU-ASKAP, DES; Text: Jayanne English (U. Manitoba) Explanation: Why would galaxies emit jets that look like ghosts? And furthermore, why do they appear to be dancing? The curled and fluffy jets from the supermassive black holes at the centers of two h...