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#	Item
311	Measuring the Speed of a Solar Tsunami! 20 Moments after a major class X-6 solar flare erupted at 18:43:59 Universal Time on December 6, Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2012-03-30 10:34:24 Astrophysics Astronomy Light sources Sun Solar flare Speed Space Shuttle Moreton wave Physics Space plasmas Plasma physics
312	Chandra Spies the Longest Sound Wave in the Universe! In September 2003, the Chandra Observatory took an x-ray image of a massive black hole in the Perseus Galaxy Cluster located 250 million light years from Earth. Alth Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2009-12-05 05:39:12 Chandra X-ray Observatory Spaceflight Wavelength Perseus Cluster Wave Light X-ray Physics Electromagnetic radiation Medicine
313	44 How Common are X-Class Solar Flares? [removed] Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2013-12-16 07:15:40 Astrophysics Astronomy Light sources Solar flare Sunspot Solar cycle Flare Sun Solar variation Plasma physics Space plasmas Physics
314	Predicting CMEs and Flares Solar flares are violent releases of energy from the sun that last 10 to 20 minutes and produce intense flashes of x-rays. Some of these flares can cause radio interference, and problems with c Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2012-03-30 09:57:32 Physics Astronomy Coronal mass ejection Solar flare Corona Flare Solar cycle 24 Solar energetic particles Plasma physics Space plasmas Astrophysics
315	The Hand of Chandra! A small, dense object only twelve miles in diameter is responsible for this beautiful X-ray nebula that spans 150 light years and resembles a Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2009-07-20 16:07:48 Parsec Cosmic distance ladder Light-year Pulsar Astronomy Space Parallax
316	The Crab Nebula - Exploring a pulsar up close! The Crab Nebula is all that remains of a massive star that exploded as a supernova, and was seen by humans for the first time in 1054 AD. Located 6000 light years away, it i Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2011-02-04 11:48:20 Supernova remnants Light sources Pulsars Exotic matter Neutron star Crab Nebula Star Supernova Chandra X-ray Observatory Astronomy Space Star types
317	Lifestyles and Radiation Dose Factor Lives in Denver, Colorado Air travel Live in a brick/stone house Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2011-03-24 08:59:16 Physics Radioactivity Chemical elements Soil contamination Radon Sievert Ionizing radiation X-ray computed tomography Roentgen equivalent man Medicine Radiobiology Health
318	Chandra Studies an Expanding Supernova Shell In March, 1987 a supernova occurred in the Large Magellanic Cloud; a nearby galaxy to the Milky Way about 160,000 light years away from Earth. The site of the explosion was t Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2010-12-01 08:44:38 Plasma physics Standard candles Light sources Space plasmas Supernovae Supernova Cosmic distance ladder X-ray astronomy Sun Astronomy Astrophysics Space
319	National Aeronautics and Space Administration JANUARY[removed]Center Planning and Development (CPD) is the “front door” for partnerships with NASA’s John F. Kennedy Space Center (KSC). Add to Reading List Source URL: www.nasa.gov Language: English - Date: 2015-01-16 10:18:31 Exploration of the Moon Space Shuttle program Google Lunar X Prize Government of the United States NASA Kennedy Space Center Space Launch System DIRECT Moon Express Spaceflight Space technology Human spaceflight
320	37 Black Hole Power…X Black holes are sometimes surrounded by a disk of orbiting matter. This disk is very hot. Add to Reading List Source URL: spacemath.gsfc.nasa.gov Language: English - Date: 2008-02-16 14:45:52 Space Black holes Plasma physics Supermassive black holes Star types Stellar black hole Mass Sun Astrophysical X-ray source Physics Astronomy Galaxies

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