Expressões populares portuguesas - Lagrimas de crocodilo

Significado: 

Choro fingido. 

Origem: 

O crocodilo, quando ingere um alimento, faz forte pressão contra o céu da boca, comprimindo as glândulas lacrimais. Assim, ele chora enquanto devora a vítima.

Fotografia - Lisboa noturna - Avenida Almirante Reis

Estúdio Mário Novais, Avenida Almirante Reis, Lisboa, sem data Colecções daFundação Calouste Gulbenkian, Lisboa, Portugal (Flickr Commons)

Astronomy picture of the day - 2017 January 25 - Cassini's Grand Finale Tour at Saturn

Cassini's Grand Finale Tour at Saturn 
Image Credit: NASA, JPL-Caltech

Explanation: Cassini is being prepared to dive into Saturn. The robotic spacecraft that has been orbiting and exploring Saturn for over a decade will end its mission in September with a spectacular atmospheric plunge. Pictured here is a diagram of Cassini's remaining orbits, each taking about one week. Cassini is scheduled to complete a few months of orbits that will take it just outside Saturn's outermost ring F. Then, in April, Titan will give Cassini a gravitational pull into Proximal orbits, the last of which, on September 15, will impact Saturn and cause the spacecraft to implode and melt. Cassini's Grand Finale orbits are designed to record data and first-ever views from inside the rings -- between the rings and planet -- as well as some small moons interspersed in the rings. Cassini's demise is designed to protect any life that may occur around Saturn or its moons from contamination by Cassini itself.