Les compartimos una serie de imágenes publicadas por la NASA en su cuenta oficial de Flikr. Algunas son antiguas pero se encuentran entre las mejores de la Agencia Espacial norteamericana, y vale la pena verlas de nuevo.
The Carina Nebula (NASA/Hubble).
Enter the Vortex… in Psychedelic Color
The storms at Saturn’s north pole.
Hubble Reveals the Ring Nebula’s True Shape
In this composite image, visible-light observations by NASA’s Hubble Space Telescope are combined with infrared data from the ground-based Large Binocular Telescope in Arizona to assemble a dramatic view of the well-known Ring Nebula.
Hubble Catches Jupiter’s Largest Moon Going to the ‘Dark Side’
NASA’s Hubble Space Telescope has caught Jupiter’s moon Ganymede playing a game of “peek-a-boo.” In this crisp Hubble image, Ganymede is shown just before it ducks behind the giant planet.
Black Hole Caught Red-Handed in a Stellar Homicide
This computer-simulated image shows gas from a tidally shredded star falling into a black hole. Some of the gas also is being ejected at high speeds into space. Astronomers observed a flare in ultraviolet and optical light from the gas falling into the black hole and glowing helium from the stars’s helium-rich gas expelled from the system.
Colossal Glow
Saturn’s auroras put on a dazzling display of light.
Magnificent CME Erupts on the Sun with Earth to Scale
On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel directly toward Earth, but did connect with Earth’s magnetic environment, or magnetosphere, causing aurora to appear on the night of Monday, September 3.
Mickey Mouse Spotted on Mercury!
This scene is to the northwest of the recently named crater Magritte, in Mercury’s south. The image is not map projected; the larger crater actually sits to the north of the two smaller ones. The shadowing helps define the striking “Mickey Mouse” resemblance, created by the accumulation of craters over Mercury’s long geologic history.
Preview of a Forthcoming Supernova
At the turn of the 19th century, the binary star system Eta Carinae was faint and undistinguished. In the first decades of the century, it became brighter and brighter, until, by April 1843, it was the second brightest star in the sky, outshone only by Sirius (which is almost a thousand times closer to Earth). In the years that followed, it gradually dimmed again and by the 20th century was totally invisible to the naked eye.
Europa’s Hidden Ice Chemistry
The icy surface of Europa is shown strewn with cracks, ridges and “chaotic terrain,” where the surface has been disrupted and ice blocks have moved around. New laboratory experiments show that water ice and frozen sulfur dioxide react even at the frigid temperatures of Europa. Because the reaction occurs without the aid of radiation, it could take place throughout the moon’s thick ice layer—an outcome that would revamp current thinking about the chemistry and geology of this moon and perhaps others.
Black Marble – Asia and Australia
This image of Asia and Australia at night is a composite assembled from data acquired by the Suomi NPP satellite in April and October 2012. The new data was mapped over existing Blue Marble imagery of Earth to provide a realistic view of the planet.
Firestorm of Star Birth in the Active Galaxy Centaurus A
Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the giant elliptical galaxy Centaurus A.
Hubble Reveals Heart of Lagoon Nebula
A spectacular new NASA/ESA Hubble Space Telescope image reveals the heart of the Lagoon Nebula. Seen as a massive cloud of glowing dust and gas, bombarded by the energetic radiation of new stars, this placid name hides a dramatic reality.
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