Robo235

6 Flips | 2 Magazines | 4 Likes | 10 Followers | @Robo235 | Keep up with Robo235 on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Robo235”

Close encounter with Comet 67P may reveal origins of life on Earth

Several hundred million miles from home, one of the most ambitious space missions ever attempted is closing in on its target: Comet 67P/Churyumov-Gerasimenko, a massive ball of ice, dust and organic materials that orbits the Sun every six-and-a-half years.<p>The probe Rosetta – built for €1bn by the …

APOD: IC 4603: Reflection Nebula in Ophiuchius (2014 Jul 23) Image Credit & Copyright: Rolf Olsen http://apod.nasa.gov/apod/ap140723.html Explanation: Why does this starfield photograph resemble an impressionistic painting? The effect is created not by digital trickery but by large amounts of interstellar dust. Dust, minute globs rich in carbon and similar in size to cigarette smoke, frequently starts in the outer atmospheres of large, cool, young stars. The dust is dispersed as the star dies and grows as things stick to it in the interstellar medium. Dense dust clouds are opaque to visible light and can completely hide background stars. For less dense clouds, the capacity of dust to preferentially reflect blue starlight becomes important, effectively blooming the stars blue light out and marking the surrounding dust. Nebular gas emissions, typically brightest in red light, can combine to form areas seemingly created on an artist's canvas. Photographed above is the central part of the nebula IC 4603 surrounding the bright star SAO 184376 (actually 8th magnitude) which mostly illuminates the blue reflection nebula. IC 4603 can be seen near the very bright star Antares (1st magnitude) toward the constellation of Ophiuchus. http://www.rolfolsenastrophotography.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140723 #APOD

PM/AM: White Holes Are the New Black Holes

Stories, videos, and our thoughts on big news you might have missed.<p><i>Welcome to PM/AM, Popular Mechanics' morning briefing on the top science and tech stories for today.</i><p>Is there a back end to a black hole? Does the stuff that a black hole sucks up go anywhere, or does it only get compressed into a …

Black Holes

Will the Andromeda galaxy someday collide with our Milky Way?

The Andromeda galaxy is approaching our Milky Way galaxy across the vastness of space. When will they collide?<p><b>Will the Milky Way and Andromeda</b> …

Apollo 11 Mission Audio - Day 1