2023年5月23日 Jupiter’s Swirls from Juno Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Kevin M. Gill Explanation: Big storms are different on Jupiter. On Earth, huge hurricanes and colossal cyclones are centered on regions of low pressure, but on Jupiter, it is the high-pre […]
2023年5月22日 Supernova Discovered in Nearby Spiral Galaxy M101 Image Credit & Copyright: Craig Stocks Explanation: A nearby star has exploded and humanity’s telescopes are turning to monitor it. The supernova, dubbed SN 2023ixf, was discovered by Japanese astronomer Koichi Itagaki three day
2023年5月19日 Curly Spiral Galaxy M63 Image Credit & Copyright: Sophie Paulin, Jens Unger, Jakob Sahner Explanation: A bright spiral galaxy of the northern sky, Messier 63 is nearby, about 30 million light-years distant toward the loyal constellation Canes Venatici. Also cataloged as NGC 5055, the
2023年5月18日 WR 134 Ring Nebula Image Credit & Copyright: Craig Stocks Explanation: Made with narrowband filters, this cosmic snapshot covers a field of view about the size of the full Moon within the boundaries of the constellation Cygnus. It highlights the bright edge of a ring-like nebula trac
2023年5月17日 Sunspot with Light Bridge Image Credit & Copyright: Mark Johnston Explanation: Why would a small part of the Sun appear slightly dark? Visible is a close-up picture of sunspots, depressions on the Sun’s surface that are slightly cooler and less bright than the rest of the Sun.
2023年5月16日 Total Eclipse: The Big Corona Image Credit & Copyright: Reinhold Wittich Explanation: Most photographs don’t adequately portray the magnificence of the Sun‘s corona. Seeing the corona first-hand during a total solar eclipse is unparalleled. The human eye can adapt to see
2023年5月15日 M16: Eagle Nebula Deep Field Image Credit & Copyright: Gianni Lacroce Explanation: From afar, the whole thing looks like an eagle. A closer look at the Eagle Nebula, however, shows the bright region is actually a window into the center of a larger dark shell of dust. Through this win
2023年5月14日 To Fly Free in Space Image Credit: NASA, STS-41B Explanation: What would it be like to fly free in space? At about 100 meters from the cargo bay of the space shuttle Challenger, Bruce McCandless II was living the dream — floating farther out than anyone had ever been before. Guided
