保护地球，探索宇宙，发现文明
2021年9月20日 Lynds Dark Nebula 1251 Image Credit & Copyright: Cristiano Gualco Explanation: Stars are forming in Lynds Dark Nebula (LDN) 1251. About 1,000 light-years away and drifting above the plane of our Milky Way galaxy, the dusty molecular cloud is part of a complex of dark nebulae mapped toward the Cepheus flare region. Across the spectrum, astrono...
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8月12日 A Beautiful Trifid Image Credit & Copyright: Mike Selby Explanation: The beautiful Trifid Nebula is a cosmic study in contrasts. Also known as M20, it lies about 5,000 light-years away toward the nebula rich constellation Sagittarius. A star forming region in the plane of our galaxy, the Trifid does illustrate three different types of astrono...
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 ...
2021年7月15日 The Dark Tower in Scorpius Image Credit & Copyright: Data – Martin Pugh Processing – Rocco Sung Explanation: In silhouette against a crowded star field along the tail of the arachnalogical constellation Scorpius, this dusty cosmic cloud evokes for some the image of an ominous dark tower. In fact, clumps of dust and molecular gas c...
2021年06月30日 Simulation: Formation of the First Stars Video Credit: Harley Katz (U. Oxford) et al. Explanation: How did the first stars form? To help find out, the SPHINX computer simulation of star formation in the very early universe was created, some results of which are shown in the featured video. Time since the Big Bang is shown in millions of years on ...
2021年06月23日 STARFORGE: A Star Formation Simulation Video & Text Credit: Michael Y. Grudić (Northwestern U.) et al., STARFORGE Collaboration; Music: Prelude, Op. 28, No. 4 in E Minor (Frédéric Chopin) Explanation: How do stars form? Most form in giant molecular clouds located in the central disk of a galaxy. The process is started, influenced, and limite...
2021年05月15日 The Southern Cliff in the Lagoon Image Credit: Julia I. Arias and Rodolfo H. Barba’ (Dept. Fisica, Univ. de La Serena), ICATE-CONICET, Gemini Observatory/AURA Explanation: Undulating bright ridges and dusty clouds cross this close-up of the nearby star forming region M8, also known as the Lagoon Nebula. A sharp, false-color composite of nar...
2021年04月17日 Inside the Flame Nebula Image Credit: NASA, JPL-Caltech, IPAC Infrared Science Archive – Processing: Amal Biju Explanation: The Flame Nebula is a stand out in optical images of the dusty, crowded star forming regions toward Orion’s belt and the easternmost belt star Alnitak, a mere 1,400 light-years away. Alnitak is the bright star at...
2021年01月16日 The Mountains of NGC 2174 Image Credit: NASA, ESA, Hubble Heritage Team (STScI/AURA) Explanation: This fantastic skyscape lies near the edge of NGC 2174 a star forming region about 6,400 light-years away in the nebula-rich constellation of Orion. It follows mountainous clouds of gas and dust carved by winds and radiation from the region’s n...