2021年03月21日 The Antikythera Mechanism Image Credit & License: Marsyas, Wikipedia Explanation: No one knew that 2,000 years ago, the technology existed to build such a device. The Antikythera mechanism, pictured, is now widely regarded as the first computer. Found at the bottom of the sea aboard […]
2021年03月20日 The Leo Trio Image Credit & Copyright: Francis Bozon Explanation: This popular group leaps into the early evening sky around the March equinox and the northern hemisphere spring. Famous as the Leo Triplet, the three magnificent galaxies found in the prominent constellation Leo gathe
2021年03月19日 Central Lagoon in Infrared Image Credit & License: NASA, ESA, Hubble; Data Archive: MAST, Processing: Alexandra Nachman Explanation: Stars fill this infrared view, spanning 4 light-years across the center of the Lagoon Nebula. Visible light images show the glowing gas and obscuring
2021年03月18日 Stardust in the Perseus Molecular Cloud Image Credit & Copyright: Kerry-Ann Lecky Hepburn, Stuart Heggie Explanation: Clouds of stardust drift through this deep skyscape, across the Perseus molecular cloud some 850 light-years away. Dusty nebulae reflecting light from embedded young
2021年03月17日 The Surface of Venus from Venera 13 Image Credit: Soviet Planetary Exploration Program, Venera 13; Processing & Copyright: Donald Mitchell & Michael Carroll (used with permission) Explanation: If you could stand on Venus — what would you see? Pictured is the view from Ven
2021年03月16日 IC 1318: The Butterfly Nebula in Gas and Dust Image Credit & Copyright: Alan Pham Explanation: In the constellation of the swan near the nebula of the pelican lies the gas cloud of the butterfly next to a star known as the hen. That star, given the proper name Sadr, is just to the r
2021年03月15日 Meteor Fireballs in Light and Sound Image Credit & Copyright: Thomas Ashcraft (Radio Fireball Observatory) Explanation: Yes, but have you ever heard a meteor? Usually, meteors are too far away to make any audible sound. However, a meteor will briefly create an ionization trail that
2021年03月14日 A Flag Shaped Aurora over Sweden Image Credit & Copyright: Mia Stålnacke Explanation: It appeared, momentarily, like a 50-km tall banded flag. In mid-March of 2015, an energetic Coronal Mass Ejection directed toward a clear magnetic channel to Earth led to one of the more intense ge
2021年03月13日 SuperCam Target on Ma’az Image Credit: NASA/JPL-Caltech/LANL/CNES/CNRS Explanation: What’s the sound of one laser zapping? There’s no need to consult a Zen master to find out, just listen to the first acoustic recording of laser shots on Mars. On Perseverance mission so
