2023年11月16日 Daytime Moon Meets Morning Star Image Credit & Copyright: Katarzyna Kaczmarczyk Explanation: Venus now appears as Earth’s brilliant morning star, shining above the southeastern horizon before dawn. For early morning risers, the silvery celestial beacon rose predawn in a close […]
2023年11月15日 M1: The Incredible Expanding Crab Image Credit: NASA, ESA, CSA, STScI; Jeff Hester (ASU), Allison Loll (ASU), Tea Temim (Princeton University) Explanation: Cataloged as M1, the Crab Nebula is the first on Charles Messier’s famous list of things which are not comets. In fact, the Cr
2023年11月14日 Three Planets Rock Image Credit & Copyright: Giovanni Passalacqua; Text: Liz Coelho (Pikes Peak) Explanation: In the fading darkness before dawn, a tilted triangle appeared to balance atop a rock formation off the southern tip of Sicily. Making up the points of the triangle are thre
2023年11月13日 Andromeda over the Alps Image Credit & Copyright: Dzmitry Kananovich Explanation: Have you ever seen the Andromeda galaxy? Although M31 appears as a faint and fuzzy blob to the unaided eye, the light you see will be over two million years old, making it likely the oldest light you e
2023年11月12日 Gibbous Moon beyond Swedish Mountain Image Credit & Copyright: Göran Strand Explanation: This is a gibbous Moon. More Earthlings are familiar with a full moon, when the entire face of Luna is lit by the Sun, and a crescent moon, when only a sliver of the Moon’s face is lit. Wh
2023年11月11日 The SAR and the Milky Way Image Credit & Copyright: Julien Looten Explanation: This broad, luminous red arc was a surprising visitor to partly cloudy evening skies over northern France. Captured extending toward the zenith in a west-to-east mosaic of images from November 5, the fain
2023年11月10日 UHZ1: Distant Galaxy and Black Hole Image Credit: X-ray: NASA/CXC/SAO/Ákos Bogdán; Infrared: NASA/ESA/CSA/STScI; Image Processing: NASA/CXC/SAO/L. Frattare & K. Arcand Explanation: Dominated by dark matter, massive cluster of galaxies Abell 2744 is known to some as Pandora’s C
2023年11月9日 M1: The Crab Nebula Image Credit: NASA, ESA, CSA, STScI; Tea Temim (Princeton University) Explanation: The Crab Nebula is cataloged as M1, the first object on Charles Messier’s famous 18th century list of things which are not comets. In fact, the Crab is now known to be a supernova
2023年11月8日 Perseus Galaxy Cluster from Euclid Image Credit & License: ESA, Euclid, Euclid Consortium, NASA; Processing: Jean-Charles Cuillandre (CEA Paris-Saclay) & Giovanni Anselmi; Text: Jean-Charles Cuillandre Explanation: There’s a new space telescope in the sky: Euclid. Equipped
2023年11月7日 A Martian Dust Devil Spins By Video Credit: NASA, JPL-Caltech, Perseverance Rover; AI processing: PipploIMP Explanation: It moved across the surface of Mars — what was it? A dust devil. Such spinning columns of rising air are heated by the warm surface and are also common in warm an
