保护地球，探索宇宙，发现文明
2022年3月7日 A Lion in Orion Image Credit & Copyright: Maroun Mahfoud Explanation: Yes, but can you see the lion? A deep exposure shows the famous dark indentation that looks like a horse’s head, visible just left and below center, and known unsurprisingly as the Horsehead Nebula. The Horsehead Nebula (Barnard 33) is part of a vast complex of dark ab...
2022年3月6日 Venus and the Triply Ultraviolet Sun Image Credit: NASA/SDO & the AIA, EVE, and HMI teams; Digital Composition: Peter L. Dove Explanation: This was a very unusual type of solar eclipse. Typically, it is the Earth’s Moon that eclipses the Sun. In 2012, though, the planet Venus took a turn. Like a solar eclipse by the Moon, the phase of Ve...
2022年3月5日 Interstellar Comet 2I Borisov NASA, ESA, and D. Jewitt (UCLA) et al. Explanation: From somewhere else in the Milky Way galaxy, Comet 2I/Borisov was just visiting the Solar System. Discovered by amateur astronomer Gennady Borisov on August 30, 2019, the first known interstellar comet is seen in these two Hubble Space Telescope images from November a...
In this undated image from the 1960s, Nancy Grace Roman sits in her office in NASA Headquarters. Roman was the first Chief of Astronomy at NASA’s Office of Space Science and the first woman to hold an executive position in the agency. In her role, she had oversight for the planning and development of programs including the Cosmic Background Explorer an...
2022年3月5日 The Multiwavelength Crab Image Credit & Copyright: NASA, ESA, G. Dubner (IAFE, CONICET-University of Buenos Aires) et al.; A. Loll et al.; T. Temim et al.; F. Seward et al.; VLA/NRAO/AUI/NSF; Chandra/CXC; Spitzer/JPL-Caltech; XMM-Newton/ESA; Hubble/STScI Explanation: The Crab Nebula is cataloged as M1, the first object on Charles Messier’...
+ NASA’s Perseverance Mars rover snapped this view of a hill in Mars’ Jezero Crater called “Santa Cruz” on April 29, 2021, the 68th Martian day, or sol, of the mission. About 20 inches (50 centimeters) across on average, the boulders in the foreground are among the type of rocks the rover team has named “Ch’al” (the ...
2022年3月4日 Spiral Galaxy NGC 2841 Image Credit & Copyright: Vitali Pelenjow Explanation: A mere 46 million light-years distant, spiral galaxy NGC 2841 can be found in the northern constellation of Ursa Major. This deep view of the gorgeous island universe was captured during 32 clear nights in November, December 2021 and January 2022. It shows off a stri...
3月份的天空会发生什么？认识早晨的行星、最近的星团，还有自己动手寻找系外行星。
A United Launch Alliance Atlas V 541 rocket, carrying the National Oceanic and Atmospheric Administration’s (NOAA) Geostationary Operational Environmental Satellite-T (GOES-T), soars upward after lifting off from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on March 1, 2022. Liftoff was at 4:38 p.m. EST. GOES-T is the third satell...
2022年3月2日 Record Prominence Imaged by Solar Orbiter Image Credit: Solar Orbiter, EUI Team, ESA & NASA; h/t: Bum-Suk Yeom Explanation: What’s happened to our Sun? Last month, it produced the largest prominence ever imaged together with a complete solar disk. The record image, featured, was captured in ultraviolet light by the Sun-orbiting Solar Orb...