Imagens do Mundo - Trabalhador retira cabos elétricos numa rua de Banguecoque, Tailândia.

Trabalhador retira cabos elétricos numa rua de Banguecoque, Tailândia.

DIEGO AZUBEL EFE

Imagens do Mundo - Policia militar na favela da Rocinha - Rio de Janeiro, Brasil

"Favela da Rocinha, Rio de Janeiro"

Imagens do Mundo - Funâmbulo em Praga

Funâmbulo em equilíbrio na corda bamba na praça da cidade velha de Praga (República Checa).

MARTIN DIVISEK EFE

Imagens do Mundo - Vulcão Agung, Indonésia

Homem observa o vulcão Agung, coberto de nuvens, desde um templo de Karangasem (Indonesia).

FIRDIA LISNAWATI AP

Astronomy picture of the day - 2017 September 26 - Cassini's Last Ring Portrait at Saturn

Cassini's Last Ring Portrait at Saturn 
Image Credit: NASA, JPL-Caltech, Space Science Institute, Mindaugas Macijauskas

Explanation: How should Cassini say farewell to Saturn? Three days before plunging into Saturn's sunny side, the robotic Cassini spacecraft swooped far behind Saturn's night side with cameras blazing. Thirty-six of these images have been merged -- by an alert and adept citizen scientist -- into a last full-ring portrait of Cassini's home planet for the past 13 years. The Sun is just above the frame, causing Saturn to cast a dark shadow onto its enormous rings. This shadow position cannot be imaged from Earth and will not be visible again until another Earth-launched spaceship visits the ringed giant. Data and images from Cassini's mission-ending dive into Saturn's atmosphere on September 15 continue to be analyzed.