Roberto Cobo Rodríguez

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Light: Earth At Night

Even though much of globe is dark at night, great swaths of the planet are illuminated by human development. In most large cities of the world, it is …

W49B: Rare Explosion May Have Created Our Galaxy's Youngest Black Hole http://chandra.si.edu/photo/2013/w49b/ This highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy. The composite image combines X-rays from Chandra (blue and green), radio data from the Very Large Array (pink), and infrared data from the Palomar Observatory (yellow). Most supernova explosions that destroy massive stars are generally symmetrical. In the W49B supernova, however, it appears that the material near its poles was ejected at much higher speeds than that at its equator. There is also evidence that the explosion that produced W49B left behind a black hole and not a neutron star like most other supernovas. X-ray: NASA/CXC/MIT/L.Lopez et al.; Infrared: Palomar; Radio: NSF/NRAO/VLA

The common spiral shape immediately brings to view the action of rotation. Water winds its way down the drain in a sink. Moist air spirals its way into the low-pressure center of a hurricane. Even the rotation of a galaxy imprints its structure in the form of dense spiral arms that trace regions of star formation. http://hte.si.edu/more_topics.html Download and print your own poster: http://hte.si.edu/multimedia.html #HTEscience

Six Galaxy Clusters: Dark Matter is Darker Than Once Thought http://chandra.si.edu/photo/2015/dark/ These galaxy clusters are part of a large study using Chandra and Hubble that sets new limits on how dark matter—the mysterious substance that makes up most of the matter in the Universe—interacts with itself. The hot gas that envelopes the clusters glows brightly in X-rays detected by Chandra (pink). When combined with Hubble’s visible light data, astronomers can map where the stars and hot gas are after the collision, as well as the inferred distribution of dark matter (blue) through the effect of gravitational lensing.

NGC 6543: A Planetary Nebula Gallery http://chandra.harvard.edu/photo/2012/pne/ This gallery shows four planetary nebulas from the first systematic survey of such objects in the solar neighborhood made with NASA's Chandra X-ray Observatory. The planetary nebulas shown here are NGC 6543 (aka the Cat's Eye), NGC 7662, NGC 7009 and NGC 6826. X-ray emission from Chandra is colored purple and optical emission from the Hubble Space Telescope is colored red, green and blue. A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when it expands to become a red giant and then sheds most of its outer layers, leaving behind a hot core that contracts to form a dense white dwarf star. A wind from the hot core rams into the ejected atmosphere, creating the shell-like filamentary structures seen with optical telescopes. The diffuse X-ray emission is caused by shock waves as the wind collides with the ejected atmosphere. The properties of the X-ray point sources in the center of about half of the planetary nebulas suggest that many central stars responsible for ejecting planetary nebulas have companion stars. (Credit: X-ray: NASA/CXC/RIT/J.Kastner et al.; Optical: NASA/STScI)

You can find more information about supernovas right here: http://chandra.harvard.edu/xray_sources/supernovas.html And learn more about the supernova remnant in the picture here: http://chandra.harvard.edu/photo/2007/g292/ NASA/SAO/CXC

M87: Galactic Super-volcano in Action http://chandra.si.edu/photo/2010/m87/ X-ray (NASA/CXC/KIPAC/N. Werner, E. Million et al); Radio (NRAO/AUI/NSF/F. Owen)

Space Scoop: Not Your Average Superhero