Astronomy picture of the day 12-09-2014 - A Sagittarius Starscape

A Sagittarius Starscape
Image Credit &Copyright:Terry Hancock(Down Under Observatory)

Explanation: This rich starscape spans nearly 7 degrees on the sky, toward theSagittarius spiral arm and the center of our Milky Way galaxy.A telescopic mosaic, it features well-known bright nebulae and star clusterscataloged by18th century cosmic tourist Charles Messier. Still popularstops for skygazers M16, the Eagle (far right), and M17, the Swan (near center) nebulae are the brightest star-forming emission regions.With wingspansof 100 light-years or so, they shine with the telltale reddish glow of hydrogen atoms from over 5,000 light-years away. Colorful open starcluster M25 near the upper left edge of the scene is closer, a mere 2,000 light-years distant and about 20 light-years across. M24, also known as theSagittarius Star Cloud, crowds in just left of center along the bottom of the frame, fainter and more distant Milky Way stars seen through a narrow window inobscuring fields of interstellar dust.

Astronomy picture of the day 11-09-2014 - Moonbow Beach

Moonbow Beach
Image Credit &Copyright:Rogelio Bernal Andreo (Deep Sky Colors)

Explanation: Like a rainbow at night, a beautiful moonbow shines above the western horizon in this deserted beach scene from Molokai Island,Hawaii, USA, planet Earth. Captured last June 17 in early morning hours, the lights along the horizon are from Honolulu and cities on the island of Oahu some 30 miles away. So where was the Moon?A rainbow isproduced by sunlight internally reflected in rain drops from the directionopposite the Sunback toward the observer. As the light passes from air to water and back to air again, longer wavelengths are refracted (bent) less than shorter ones resulting in the separation of colors. And so the moonbow is produced as raindrops reflect moonlight from the direction opposite the Moon. That puts the Moon directly behind the photographer, still low and rising over the eastern horizon, a few days pastits full phase.

Il Divo - "Unbreak my heart" - Video - Music - Live

"Unbreak my heart"

Um navio britânico desaparecido desde 1846 foi descoberto ao largo do Canadá.

O primeiro-ministro canadiano, Stephen Harper, anunciou esta quarta-feira a localização de restos de um dos dois navios expedicionários britânicos desaparecidos no Ártico em 1846, qualificando a descoberta de histórica.

“Este é verdadeiramente um momento histórico para o Canadá”, disse Harper, sublinhando que “os navios de Franklin são uma parte importante da história do Canadá, já que as suas expedições, que tiveram lugar há quase 200 anos, lançaram as fundações da soberania do [Arquipélago] Ártico Canadiano”.

A busca pelos navios HMS Erebus e HMS Terror, comandados pelo explorador britânico Sir John Franklin, envolveu seis grandes expedições desde 2008, que culminaram, no domingo, na confirmação da descoberta por um veículo subaquático controlado remotamente.

A informação reunida é suficiente para atestar a veracidade da descoberta, embora ainda esteja por esclarecer a qual dos navios pertencem os despojos encontrados.

Observador - Portugal

Imagens do Mundo - Alfama - Lisboa - Portugal

Un hombre arregla la fachada de su casa en el barrio de Alfama en Lisboa (Portugal). El Ejecutivo portugués reconoció que las tasas de crecimiento registradas en el primer semestre de 2014 son peores de lo que sería deseable, aunque insistió en que, aun así, son superiores a la media europea.

Francisco Seco (AP)

Una mujer es rescatada por las inundaciones en la ciudad de Srinagar (India).

Una mujer es rescatada por las inundaciones en la ciudad de Srinagar (India). El número de personas que han muerto a causa de las peores lluvias que han afectado a India y Pakistán en medio siglo ha llegado a 420, mientras que miles de personas siguen atrapadas por la persistencia de las precipitaciones.

Dar Yasin (AP)

Foto - Barreiro - Tejo - 09-09-2014

 

Tejo - Barreiro

 

 

09-09-2014

JoanMira

Astronomy picture of the day 09-09-2014 - An Aurora Cupcake with a Milky Way Topping

                                                                                                                                                                      An Aurora Cupcake with a Milky Way Topping
Image Credit &Copyright:Göran Strand

Explanation: This sky looked delicious.Double auroral ovals were captured above the town lights of Östersund, Sweden, last week.Pictured above, the green ovals occurred lower to the ground than violet aurora rays above, making the whole display look a bit like a cupcake. To top it off, far in the distance, the central band or our Milky Way Galaxy slants down from the upper left. The auroras were caused by our Sun ejecting plasma clouds into the Solar System just a few days before, ionized particles that subsequently impacted the magnetosphere of the Earth. Aurora displays may continue this week as an active sunspot group rotated into view just a few days ago.

Imagens do Mundo - Colibri - Colômbia

Un colibrí vuela en un jardín en Pereira (Colombia), el 20 de agosto de 2014.

LUIS ACOSTA (afp)

Imagens do Mundo - Vulcão Bardarbunga - Islândia

La erupción originada al norte del volcán islandés Bardarbunga, situado bajo el glaciar Vatnajökull, continúa a "nivel estable" 48 horas después de su estallido.

Stefano Di Nicolo (AP)