Mona Sukkarieh

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APOD: Cloud, Clusters and Comet Siding Spring (2014 Sep 04) Image Credit & Copyright: Rolando Ligustri (CARA Project, CAST) http://apod.nasa.gov/apod/ap140904.html Explanation: On October 19th, a good place to watch Comet Siding Spring will be from Mars. Then, this inbound visitor (C/2013 A1) to the inner solar system, discovered in January 2013 by Robert McNaught at Australia's Siding Spring Observatory, will pass within 132,000 kilometers of the Red Planet. That's a near miss, equivalent to just over 1/3 the Earth-Moon distance. Great views of the comet for denizens of planet Earth's southern hemisphere are possible now, though. This telescopic snapshot from August 29 captured the comet's whitish coma and arcing dust tail sweeping through southern skies. The fabulous field of view includes, the Small Magellanic Cloud and globular star clusters 47 Tucanae (right) and NGC 362 (upper left). Worried about all those spacecraft in Martian orbit? Streaking dust particles from the comet could pose a danger and controllers plan to position Mars orbiters on the opposite side of the planet during the comet's close flyby. http://apod.nasa.gov/lib/about_apod.html#srapply http://cara.uai.it/ http://www.castfvg.it/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140904 #APOD

New Map Locates Milky Way in Neighborhood of 100,000 Galaxies

Astronomers have defined a huge group of galaxies called a supercluster, now named Laniakea, with the Milky Way on its fringes.<p>A new map of the Milky Way's cosmic neighborhood shows where our galaxy lives in relation to thousands of others nearby, with scientists giving the newly discovered …

NASA Scientists Study The Sun By Listening To It

Avert thy gaze!<p>What’s the fastest way to understand space? According to NASA, it’s listening to the music of the spheres displayed as actual music. A program that converts astronomical data into sound is letting researchers blaze through years of data with ease. At NASA's Goddard Space Flight …

Magnetism

Moon’s near side is its dark side

Moon image via US Naval Observatory<p>Tonight – September 16, 2018 – see if you can make out the dark areas on tonight’s half-illuminated first quarter …

Solar flare flurry footage released by Nasa – video

Nasa images from its Solar Dynamics Observatory show the sun producing solar flares. A mid-level flare was registered in the last week of August, but the activity continued, with more than six further flares registered by the SDO. A solar flare is a burst of radiation that cannot penetrate the …

An Asteroid Discovered Just Days Ago Is Zipping By The Earth This Weekend — Here's How To Watch

It was nicknamed Pitbull, "due to its small size of up to 85 feet (26m) and scary demeanor" according to a Slooh Space Telescope press release.<p>Slooh Space Telescope will be transmitting images of the space rock from the Canary Islands Observatory, beginning on Saturday night at 10 p.m. EDT. The …

Asteroids

APOD: Moonbow Beach (2014 Sep 06) Image Credit & Copyright: Rogelio Bernal Andreo (Deep Sky Colors) http://apod.nasa.gov/apod/ap140906.html Explanation: Like a rainbow at night, a beautiful moonbow shines above the western horizon in this deserted beach scene from Molokai Island, Hawaii, USA, planet Earth. Captured last June 17 in early morning hours, the lights along the horizon are from Honolulu and cities on the island of Oahu some 30 miles away. So where was the Moon? A rainbow is produced by sunlight internally reflected in rain drops from the direction opposite the Sun back toward the observer. As the light passes from air to water and back to air again, longer wavelengths are refracted (bent) less than shorter ones resulting in the separation of colors. And so the moonbow is produced as raindrops reflect moonlight from the direction opposite the Moon. That puts the Moon directly behind the photographer, still low and rising over the eastern horizon, a few days past its full phase. http://www.facebook.com/DeepSkyColors http://www.deepskycolors.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140906 #APOD

Newfound asteroid will give Earth super-close shave on Sunday

Earth is about to have a close encounter with a house-sized asteroid on Sunday (Sept. 7), when a space rock discovered just days ago will zoom by our planet at a range closer than some satellites. But have no fear, NASA says the asteroid won't hit Earth.<p>The asteroid 2014 RC will safely buzz Earth …