2021年06月23日 STARFORGE: A Star Formation Simulation Video & Text Credit: Michael Y. Grudić (Northwestern U.) et al., STARFORGE Collaboration; Music: Prelude, Op. 28, No. 4 in E Minor (Frédéric Chopin) Explanation: How do stars form? Most form in giant molecular clouds located in the central disk […]
2021年06月22日 HD 163296: Jet from a Star in Formation Image Credit: Visible: VLT/MUSE (ESO); Radio: ALMA (ESO/NAOJ/NRAO) Explanation: How are jets created during star formation? No one is sure, although recent images of the young star system HD 163296 are quite illuminating. The central star in the fe
2021年06月21日 The Tadpole Galaxy from Hubble Image Credit: Hubble Legacy Archive, ESA, NASA; Processing: Amal Biju Explanation: Why does this galaxy have such a long tail? In this stunning vista, based on image data from the Hubble Legacy Archive, distant galaxies form a dramatic backdrop for disrupte
2021年06月19日 Northern Summer Twilight Image Credit & Copyright: Justin Anderson Explanation: Nights grow shorter and days grow longer as the summer solstice approaches in the north. Usually seen at high latitudes in summer months, noctilucent or night shining clouds begin to make their appearanc
2021年06月18日 Devil Horns from a Ring of Fire Image Credit & Copyright: Madhup Rathi Explanation: Atmospheric refraction flattened the solar disk and distorted its appearance in this telescopic view of an Atlantic sunrise on June 10. From Belmar, New Jersey on the US east coast, the scene was rec
2021年06月17日 NGC 6888: The Crescent Nebula Image Credit & Copyright: Joe Navara, Glenn Clouder, Russell Discombe Explanation: NGC 6888, also known as the Crescent Nebula, is a about 25 light-years across blown by winds from its central, bright, massive star. A triumvirate of astroimagers ( Joe,
2021年06月16日 Scorpius Enhanced Image Credit & Copyright: Stefan Lenz Explanation: If Scorpius looked this good to the unaided eye, humans might remember it better. Scorpius more typically appears as a few bright stars in a well-known but rarely pointed out zodiacal constellation. To get a specta
2021年06月14日 Ganymede from Juno Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Kevin M. Gill; Explanation: What does the largest moon in the Solar System look like? Jupiter’s moon Ganymede, larger than even Mercury and Pluto, has an icy surface speckled with bright young c
