Imagens do Mundo - Vulcao Pavlof - Alaska

Imagen tomada por el satélite Landsat 8 el 15 de noviembre de 2014 y transmitida hoy, donde se puede ver una columna de humo expulsada durante la erupción del volcán Pavlof en Alaska. El observatorio de Volcanes de Alaska informó que la altura de las nubes de ceniza se estima entorno a los 9.100 metros sobre el nivel del mar.

NASA (AFP)

Astronomy picture of the day 18-11-2014 - Star Formation in the Tadpole Nebula

Star Formation in the Tadpole Nebula
Image Credit: WISE, IRSA, NASA; Processing & Copyright :Francesco Antonucci
Explanation: Dusty emission in the Tadpole nebula, IC 410, lies about 12,000 light-years away in the northern constellationAuriga. The cloud of glowing gas is over 100 light-years across,sculpted bystellar winds and radiation from embedded open star clusterNGC 1893.Formed in the interstellar clouda mere4 million years ago, bright cluster stars are seen all around the star-forming nebula. Notable near the image center are two relatively dense streamers of material trailing away from the nebula's central regions. Potentially sites of ongoing star formation in IC 410, thesecosmic tadpoleshapes are about 10 light-years long. The featured image was taken in infrared light by NASA's Wide Field Infrared Survey Explorer (WISE) satellite.

Texte - Au suivant tant que je ne m’en lasse.

Une semaine qui finit au bout de l’essoufflement ; un dimanche trop court ; et voilà qu’elle recommence déjà; 

Lassant recommencement, sans grâce ; peine sans espoir ; mortellement morne, sans surprise, tel tant d’autres égrenés au long de l’inventaire des années de labeur et de souffrance et d’ennui.

A bout de souffle, Le soleil ira se lever ; moi, j’en ferai de même ; peut-être…

Rio de Janeiro, le 23 septembre 2012.

JOANMIRA

Imagens do Mundo - Miudo de Nova Delhi - India

Un niño indio posa para una fotografía tras darse un baño en Nueva Delhi, India.

CHANDAN KHANNA (AFP)

Astoronomy picture of the day - 14-11-2014 - Welcome to a Comet

Welcome to a Comet 
Image Credit: ESA/Rosetta/Philae/CIVA

Explanation: The Rosetta Mission lander is safely on a comet. One of Philae's feet appears at the bottom left of this spectacular image of the surface of C67/P Churyumov-Gerasimenko. Still a happy lander, Philae bounced twice before settling and returning images from the surface, traveling a kilometer or so after initially touching at the targeted site Agilkia. A surface panorama suggests that the lander has come to rest tilted and near a shadowing wall, with its solar panels getting less illumination that hoped. Philae's science instruments are working as planned and data is being relayed during communications windows, when the Rosetta spacecraft is above the lander's new horizon.

Astronomy picture of the day 13-11-2014 - Descent to a Comet

Descent to a Comet
Image Credit: ESA/Rosetta/Philae/ROLIS

Explanation: Yesterday, thefirst soft landing on a comet took place some 500 million kilometers from planet Earth as theRosetta missionlander Philae settled on the nucleus ofC67/P Churyumov-Gerasimenko. The landing site, dubbed Agilkia, is located near the center ofthis remarkable imagesnapped by Philae's ROLIS (ROsetta Lander Imaging System) camera. Taken from a distance of about 3 kilometers the image has a resolution of about 3 meters per pixel at the surface.After Philae's release from the orbiter, its seven-hour longdescent was madewithout propulsion or guidance. Following its descent the lander is in place, though its anchoring harpoon system did not fire. For 2.5 days the lander is intended to conduct its mainscience mission returning extensive images and data. An extended surface mission may be possible if sunlight and dust conditions allow solar panels to recharge Philae's battery.

Astronomy picture of the day 11-11-2014 - Polar Ring Galaxy NGC 660

Polar Ring Galaxy NGC 660
Image Credit: Gemini Observatory, AURA,Travis Rector(Univ. Alaska Anchorage)

Explanation: NGC 660 is featured inthis cosmic snapshot, a sharp composite of broad and narrow band filter image data from the Gemini North telescopeon Mauna Kea. Over 20 million light-years away and swimming within the boundaries of theconstellation Pisces, NGC 660's peculiar appearance marks it asa polar ring galaxy. A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dustorbiting in rings nearly perpendicular to the plane of the galactic disk.The bizarre-looking configuration could have been caused by the chance capture of material from a passing galaxy by a disk galaxy, with the captured debris eventually strung out in a rotating ring. The violent gravitational interaction would account for the myriad pinkish star forming regions scattered along NGC 660's ring.The polar ring component can also be used to explore the shape of the galaxy's otherwise unseendark matter halo by calculating thedark matter's gravitational influence on the rotation of the ring and disk. Broader than the disk, NGC 660's ring spans over 50,000 light-years.

Foto - Parc Aufrery - 10-11-2014

Parc Aufrery

10-11-2014

JoanMira

Astronomy picture of the day 10-11-2014 - Milky Way over Devils Tower

Milky Way over Devils Tower
Image Credit &Copyright:David Lane

Explanation: A mysterious formation known asDevils Tower rises into the dark above northeastern Wyoming's prairie landscape in this 16 frame panoramic view. Seen against the night sky's thin, pale clouds and eerie greenairglow, star clusters and nebulae of the Milky Way arc toward the galaxy'scentral realmat right. Of course the scene contains the Milky Way's own haunting and grisly visagesof halloween, includingghosts, a flaming skull, a glowing eye and a witch's broom. To find them, slide your cursor over the picture or just follow this link,if you dare. 

Foto - Parc d'Aufrery - 09-11-2014

Parc d'Aufrery

09-11-2014

JoanMira