2019 November 20 Arp 273: Battling Galaxies from Hubble Image Credit: NASA, ESA, Hubble; Processing & Copyright: Rudy Pohl Explanation: What’s happening to these spiral galaxies? Although details remain uncertain, there sure seems to be a titanic battle going on. The upper galaxy is labell […]
2019 November 19 Milky Way over Uruguayan Lighthouse Image Credit & Copyright: Mauricio Salazar Explanation: Can a lighthouse illuminate a galaxy? No, but in the featured image, gaps in light emanating from the Jose Ignacio Lighthouse in Uruguay appear to match up nicely, although only momentari
2019 November 18 Passing Asteroid Arrokoth Video Credit: NASA, JHU APL, SwRI Explanation: What would it look like to pass asteroid Arrokoth? The robotic New Horizons spacecraft zoomed past Arrokoth in January, 3.5 years after the spacecraft passed Pluto. If this object’s name doesn’t sou
2019 November 17 Young Stars in the Rho Ophiuchi Cloud Image Credit: NASA, JPL-Caltech, WISE Explanation: How do stars form? To help find out, astronomers created this tantalizing false-color composition of dust clouds and embedded newborn stars in infrared wavelengths with WISE, the Wide-field Infr
2019 November 16 The Star Streams of NGC 5907 Image Credit & Copyright: R Jay Gabany (Blackbird Observatory) – collaboration; D.Martinez-Delgado(IAC, MPIA), J.Penarrubia (U.Victoria) I. Trujillo (IAC) S.Majewski (U.Virginia), M.Pohlen (Cardiff) Explanation: Grand tidal streams of stars see
2019 November 15 M16 and the Eagle Nebula Image Credit & Copyright: Martin Pugh Explanation: A star cluster around 2 million years young surrounded by natal clouds of dust and glowing gas, M16 is also known as The Eagle Nebula. This beautifully detailed portrait of the region was made with grou
2019 November 14 Mercury and the Quiet Sun Image Credit & Copyright: John Chumack Explanation: On November 11, 2019 the Sun was mostly quiet, experiencing a minimum in its 11 year cycle of activity. In fact, the only spot visible was actually planet Mercury, making a leisurely 5 1/2 hour transit
2019 November 13 Mercury in Silhouette Image Credit & Copyright: Martin Wise Explanation: The small, dark, round spot in this solar close up is planet Mercury. In the high resolution telescopic image, a colorized stack of 61 sharp video frames, a turbulent array of photospheric convection cells
2019 November 12 NGC 3717: A Nearly Sideways Spiral Galaxy Image Credit: ESA/Hubble & NASA, Processing: D. Rosario Explanation: Some spiral galaxies are seen nearly sideways. Most bright stars in spiral galaxies swirl around the center in a disk, and seen from the side, this disk can be appear
2019 November 11 Lunar Craters Langrenus and Petavius Image Credit & Copyright: Eduardo Schaberger Poupeau Explanation: The history of the Moon is partly written in its craters. Pictured here is a lunar panorama taken from Earth featuring the large craters Langrenus, toward the left, and Petavi
