Cielos De Suiza

Torcal de Antequera es un paraje natural situado en los términos municipales de Antequera y Villanueva de la Concepción de la provincia de Málaga, en Andalucía (España).

Crédito: Juanma Espinosa

https://instagram.com/juanmaespinosa

~Antares

Arco de la Vía Láctea sobre el Parque Nacional del Teide, el cual es el mayor de Canarias. Es una excursión obligada para todos los que visiten Tenerife.

Un paisaje único de cráteres, volcanes y ríos de lava petrificada que rodean la impresionante silueta del Volcán Teide, que se alza hasta los 3.718 m de altitud. 

Crédito: Benjamin Barakat

https://instagram.com/benjaminbarakat

~Antares

Horseshoe bend, Arizona.

Crédito: Felix Barra

https://www.facebook.com/felix.barra.5

Rastro estelar sobre los árboles muertos en el embalse de Manasquan, Jersey Shore, NJ. Para esta fotografía fueron tomadas más de 280 fotos en el transcurso de 1.5 horas y apiladas para mostrar el aparente movimiento de las estrellas.

Crédito: John Entwistle.

https://instagram.com/johnentwistle_photography

~Antares

Región activa solar AR2786 (Izquierda) y AR2785 (Derecha) en comparativa con nuestro planeta.

Crédito: Paul's Astrophotography

Esta imagen etérea captura un halo lunar en un raro cielo nublado sobre el Observatorio Paranal de ESO. Lo sobrenatural de esta imagen, obtenida en el Very Large Telescope (VLT) de ESO en el norte de Chile, se debe a una combinación de fenómenos de luz natural y artificial. Este fenómeno óptico se crea cuando la luz de la luna es refractada por millones de pequeños cristales de hielo y gotas de agua en la atmósfera circundante.

Estos halos son bastante comunes; sin embargo, requieren bastante luz para aparecer, por lo que la Luna debe estar en una posición específica con respecto a la Tierra y al Sol para reflejar suficiente luz para producir un anillo fino como este. Este halo particular comprende múltiples bandas de colores que se forman de la misma manera que en un arco iris: la luz de diferentes longitudes de onda se refracta en cantidades variables. La luz blanca se divide así en sus partes constituyentes, dispersándose para crear un espectro de colores visualmente distintos.

Crédito: Juan Carlos Muñoz-Mateos / ESO

¡Hay lugares que pueden encantarnos por su singular belleza!

Ruinas de la capilla de S. João (Castillo de Monsanto)

Nikon D610 | Walimex Pro 14 mm f / 2.8 ED COMO SI UMC | F / 2.8 | 10 fotos x 20 años | ISO: 1250

Crédito: Carreto

https://www.facebook.com/filipecarretofotografia/

Cohete Atlas V con el NROL-101

Crédito: ULA

Rocket Launches and Rising Seas

At NASA, we’re not immune to effects of climate change. The seas are rising at NASA coastal centers – the direct result of warming global temperatures caused by human activity. Several of our centers and facilities were built near the coast, where there aren’t as many neighbors, as a safety precaution. But now the tides have turned and as sea levels rise, these facilities are at greater risk of flooding and storms.

Global sea level is increasing every year by 3.3 millimeters, or just over an eighth of an inch, and the rate of rise is speeding up over time. The centers within range of rising waters are taking various approaches to protect against future damage.

Kennedy Space Center in Florida is the home of historic launchpad 39A, where Apollo astronauts first lifted off for their journey to the Moon. The launchpad is expected to flood periodically from now on.

Like Kennedy, Wallops Flight Facility on Wallops Island, Virginia has its launchpads and buildings within a few hundred feet of the Atlantic Ocean. Both locations have resorted to replenishing the beaches with sand as a natural barrier to the sea.

Native vegetation is planted to help hold the sand in place, but it needs to be replenished every few years.

At the Langley Research Center in Hampton, Virginia, instead of building up the ground, we’re hardening buildings and moving operations to less flood-prone elevations. The center is bounded by two rivers and the Chesapeake Bay.

The effects of sea level rise extend far beyond flooding during high tides. Higher seas can drive larger and more intense storm surges – the waves of water brought by tropical storms.

In 2017, Hurricane Harvey brought flooding to the astronaut training facility at Johnson Space Center in Houston, Texas. Now we have installed flood resistant doors, increased water intake systems, and raised guard shacks to prevent interruptions to operations, which include astronaut training and mission control.

Our only facility that sits below sea level already is Michoud Assembly Facility in New Orleans. Onsite pumping systems protected the 43-acre building, which has housed Saturn rockets and the Space Launch System, from Hurricane Katrina. Since then, we’ve reinforced the pumping system so it can now handle double the water capacity.

Ames Research Center in Silicon Valley is going one step farther and gradually relocating farther south and to several feet higher in elevation to avoid the rising waters of the San Francisco Bay.

Understanding how fast and where seas will rise is crucial to adapting our lives to our changing planet.

We have a long-standing history of tracking sea level rise, through satellites like the TOPEX-Poseidon and the Jason series, working alongside partner agencies from the United States and other countries.

We just launched the Sentinel-6 Michael Freilich satellite—a U.S.-European partnership—which will use electromagnetic signals bouncing off Earth’s surface to make some of the most accurate measurements of sea levels to date.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

Las mediciones del satélite Copernicus Sentinel-5P muestran que el agujero de ozono de este año sobre la Antártida es uno de los más grandes y profundos de los últimos años.

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Antarctic ozone hole is one of the largest and deepest in recent years

Measurements from the Copernicus Sentinel-5P satellite show that this year’s ozone hole over the Antarctic is one of the largest and deepest

Crédito: ESA