2020年10月4日 Orion Nebula in Oxygen, Hydrogen, and Sulfur Image Credit & Copyright: César Blanco González Explanation: Few astronomical sights excite the imagination like the nearby stellar nursery known as the Orion Nebula. The Nebula’s glowing gas surrounds hot young stars at the edge of […]
2020年10月3日 Driving to the Sun Image Credit: Solar Dynamics Observatory, NASA Explanation: How long would it take to drive to the Sun? Brittany age 7, and D.J. age 12, ponder this question over dinner one evening. James also age 7, suggests taking a really fast racing car while Christopher age 4, eag
2020年10月1日 Solis Lacus: The Eye of Mars Image Credit & Copyright: Damian Peach Explanation: As telescopes around planet Earth watch, Mars is growing brighter in night skies, approaching its 2020 opposition on October 13. Mars looks like its watching too in this view of the Red Planet from Septe
2020年9月30日 Sonified: Eagle Nebula Pillars Image Credit: NASA, ESA, & The Hubble Heritage Team (STScI/AURA); Sonification: NASA, CXC, SAO, K. Arcand, M. Russo & A. Santaguida Explanation: Yes, but have you ever experienced the Eagle Nebula with your ears ? The famous nebula, M16, is best kn
2020年9月29日 GW Orionis: A Star System with Tilted Rings Animation Illustration Credit: ESO, U. Exeter, S. Kraus et al., L. Calçada Explanation: Triple star system GW Orionis appears to demonstrate that planets can form and orbit in multiple planes. In contrast, all the planets and moons in our Solar
2020年9月28日 Filaments of the Cygnus Loop Image Credit: ESA/Hubble & NASA, W. Blair; Acknowledgement: Leo Shatz Explanation: What lies at the edge of an expanding supernova? Subtle and delicate in appearance, these ribbons of shocked interstellar gas are part of a blast wave at the expanding edge
2020年9月27日 Lightning over Colorado Image Credit & Copyright: Joe Randall Explanation: Have you ever watched a lightning storm in awe? Join the crowd. Oddly, details about how lightning is produced remains a topic of research. What is known is that updrafts carry light ice crystals into collisio
2020年9月26日 Moon Pairs and the Synodic Month Image Credit & Copyright: Marcella Giulia Pace Explanation: Observe the Moon each night and its visible sunlit portion will gradually change. In phases progressing from New Moon to Full Moon to New Moon again, a lunar cycle or synodic month is complet
2020年9月25日 Moon over Andromeda Composite Image Credit & Copyright: Adam Block and Tim Puckett Explanation: The Great Spiral Galaxy in Andromeda (also known as M31), a mere 2.5 million light-years distant, is the closest large spiral to our own Milky Way. Andromeda is visible to the unaided eye
