J. Eduardo Murillo B.
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APOD: M74: The Perfect Spiral (2013 Aug 11) Image Credit: NASA, ESA, and the Hubble Heritage (STScI / AURA)- ESA / Hubble Collaboration Acknowledgment: R. Chandar (Univ. Toledo) and J. Miller (Univ. Michigan) http://apod.nasa.gov/apod/ap130811.html Explanation: If not perfect, then this spiral galaxy is at least one of the most photogenic. An island universe of about 100 billion stars, 32 million light-years away toward the constellation Pisces, M74 presents a gorgeous face-on view. Classified as an Sc galaxy, the grand design of M74's graceful spiral arms are traced by bright blue star clusters and dark cosmic dust lanes. Constructed from image data recorded in 2003 and 2005, this sharp composite is from the Hubble Space Telescope's Advanced Camera for Surveys. Spanning about 30,000 light-years across the face of M74, it includes exposures recording emission from hydrogen atoms, highlighting the reddish glow of the galaxy's large star-forming regions. Recently, many astronomers are tracking a bright supernova that has been seen in M74. http://heritage.stsci.edu/2007/41/ http://hubblesite.org/news/2007/41 http://spacetelescope.org/news/heic0719/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=130811 #APOD
A new type of drug that “revs up” the immune system to destroy cancer is being tested on humans for the first time.<p>Scientists at the University of Southampton have developed the treatment in an attempt to tackle cancers, such as those of the pancreas, head and neck, that are particularly hard to …Immunotherapy
Stars appear to twinkle, planets don’t. Here's why.<p>Did you know you can distinguish between stars and planets in the sky?<p>Stars twinkle, planets don't.<p>Okay, that's not actually correct. The stars, planets, even the sun and moon twinkle, all in varying amounts. Anything outside the atmosphere is …
Jan. 19, 2014: Solar X-Flare<p>The largest sunspot group of the solar cycle unleashed a large (X1.2 class) flare just when it was facing right towards …