2023年6月28日 Messier 24: Sagittarius Star Cloud Image Credit & Copyright: Emmanuel Astronomono Explanation: Unlike most entries in Charles Messier’s famous catalog of deep sky objects, M24 is not a bright galaxy, star cluster, or nebula. It’s a gap in nearby, obscuring interstellar du […]
2023年6月27日 MAVEN’s Ultraviolet Mars Image Credit: MAVEN, Laboratory for Atmospheric and Space Physics, Univ. Colorado, NASA Explanation: These two global views of Mars were captured at ultraviolet wavelengths, beyond the spectrum visible to human eyes. Recorded by the MAVEN spacecraft’s
2023年6月26日 The Belt of Venus over Mount Everest Image Credit & Copyright: Soumyadeep Mukherjee Explanation: You’ve surely seen it, but you might not have noticed it. During a cloudless twilight, just before sunrise or after sunset, part of the atmosphere above the horizon appears slightly
2023年6月25日 Lightning on Jupiter Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Kevin M. Gill Explanation: Does lightning occur only on Earth? No. Spacecraft in our Solar System have detected lightning on other planets, including Mars, Jupiter and Saturn, and lightning is likely
2023年6月24日 3D Ingenuity Image Credit: NASA, JPL-Caltech, MSSS, ASU Explanation: The multicolor, stereo imaging Mastcam-Z on the Perseverance rover zoomed in to capture this 3D close-up (get out your red/blue glasses) of the Mars Ingenuity helicopter on mission sol 45. That’s Earth-date 2021 Ap
2023年6月23日 Giant Galaxies in Pavo Image Credit & Copyright: Mike Selby, Observatorio El Sauce Explanation: Over 500,000 light years across, NGC 6872 (top right) is a truly enormous barred spiral galaxy, at least 5 times the size of our own very large Milky Way. The appearance of this giant gala
2023年6月22日 Stars and Dust across Corona Australis Image Credit & Copyright: Alessandro Cipolat Bares Explanation: Cosmic dust clouds cross a rich field of stars in this telescopic vista near the northern boundary of Corona Australis, the Southern Crown. Part of a sprawling molecular cloud compl
2023年6月20日 The Ñandú in the Milky Way Image Credit & Copyright: Fefo Bouvier; Line Drawing: Alfonso Rosso Explanation: Have you seen the bird in the Milky Way? Beyond the man in the Moon, the night sky is filled with stories, and cultures throughout history have projected some of their most end
2023年6月19日 The Busy Center of the Lagoon Nebula Image Credit: NASA, ESA, Hubble; Processing: Francisco Javier Pobes Serrano Explanation: The center of the Lagoon Nebula is a whirlwind of spectacular star formation. Visible near the image center, at least two long funnel-shaped clouds, each roughly h
