Imagenes del Mundo - Un hombre en la Plaza Roja - Moscu

Un hombre se refleja en un charco mientras camina por la Plaza Roja de Moscú (Rusia).

KIRILL KUDRYAVTSEV (AFP)

25 miradouros em Lisboa - Santo Estêvão

Still undiscovered by many locals and guidebooks, this viewpoint is found next to St. Stephen’s Church. It’s a quiet spot for a break after a stroll through the narrow streets of Alfama.

Ainda desconhecido de muitos lisboetas e dos guias turísticos, este miradouro fica junto à Igreja de Santo Estêvão. É um local tranquilo, para uma pausa depois de um passeio pelas ruelas de Alfama.

Astronomy picture of the day - 2015 August 18 - M1: The Crab Nebula from Hubble

M1: The Crab Nebula from Hubble 
Image Credit: NASA, ESA, J. Hester, A. Loll (ASU)

Explanation: This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. The filaments are not only tremendously complex, but appear to have less mass than expelled in the original supernova and a higher speed than expected from a free explosion. The featured image, taken by the Hubble Space Telescope, is presented in three colors chosen for scientific interest. The Crab Nebula spans about 10 light-years. In the nebula's very center lies a pulsar: a neutron star as massive as the Sun but with only the size of a small town. The Crab Pulsar rotates about 30 times each second.

Astronomy picture of the day - 2015 August 17 - Andromeda Rising over the Alps

2015 August 17
Andromeda Rising over the Alps 
Image Credit & Copyright: Matteo Dunchi

Explanation: Have you ever seen the Andromeda galaxy? Although M31 appears as a faint and fuzzy blob to the unaided eye, the light you see will be over two million years old, making it likely the oldest light you ever will see directly. Now rising near a few hours after sunset from mid-latitude northern locations, Andromeda is rising earlier each night and will be visible to northerners all night long starting in September. The featured image capturedAndromeda rising above the Italian Alps last month. As cool as it may be to see this neighboring galaxy to our Milky Way with your own eyes, long duration camera exposures can pick up many faint and breathtaking details. Recent data indicates that our Milky Way Galaxy will collide and coalesce with the slightly larger Andromeda galaxy in a few billion years.