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NASA Image Of The Day

City Lights Shine Brighter During the Holidays
NASA Image Of The Day
City lights shine brighter during the holidays when compared with the rest of the year, as shown using a new analysis of daily data from the NASA-NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite. Dark green pixels are areas where lights are 50 percent brighter, or more, during December. This new analysis of holiday lights uses an advanced algorithm, developed at NASA's Goddard Space Flight Center in Greenbelt, Maryland, that filters out moonlight, clouds and airborne particles in order to isolate city lights on a daily basis. The data from this algorithm provide high-quality satellite information on light output across the globe, allowing scientists to track when ? and how brightly ? people illuminate the night. A daily global dynamic dataset of nighttime lights is a new way for researchers to understand the broad societal forces impacting energy decisions and to look at how people use cities, from an energy perspective. > Full Story: NOAA/NASA Satellite Sees Holiday Lights Brighten Cities Image Credit: NASA's Earth Observatory/Jesse Allen...
17 Dec 2014

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ESA Top News
ESA Top News

  • Venus Express goes gently into the night

    ESA’s Venus Express has ended its eight-year mission after far exceeding its planned life. The spacecraft exhausted its propellant during a series of thruster burns to raise its orbit following the low-altitude aerobraking earlier this year. 

  • Follow the light

    Human spaceflight and operations image of the week: Identifying cities at night, ESA astronaut Samantha Cristoforetti and researchers are asking for your help

  • Bright lights: big cities at night

    As the days grow shorter and the temperatures drop in Europe, test your geography skills in the warmth of your home – while helping scientists to pinpoint light pollution.

  • Magnetic paint

    Space Science Image of the Week: Planck paints the magnetic field along the plane of the Milky Way

  • CryoSat extends its reach on the Arctic

    CryoSat has delivered this year’s map of autumn sea-ice thickness in the Arctic, revealing a small decrease in ice volume. In a new phase for ESA’s ice mission, the measurements can now also be used to help vessels navigate through the north coastal waters of Alaska, for example.

  • ESA and Omega: a watch for astronauts

    Swiss watchmaker Omega has announced a new version of its historic space watch, tested and qualified with ESA’s help and drawing on an invention of ESA astronaut Jean-François Clervoy.

  • Week In Images

    Our week through the lens:
    08-12 December 2014

  • Mexico City subsidence

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  • Crude oil cargo for ESA’s first flight with China

    ESA is finalising its first experiment on a Chinese space mission: small containers of crude oil will help to improve our understanding of oil reservoirs buried kilometres underground.

  • Rosetta fuels debate on origin of Earth’s oceans

    ESA’s Rosetta spacecraft has found the water vapour from its target comet to be significantly different to that found on Earth. The discovery fuels the debate on the origin of our planet’s oceans.

  • ATV views Space Station as never before

    ESA’s fifth and last Automated Transfer Vehicle tested a new technique before docking with the International Space Station in August, at the same time revealing the orbital complex in a new light.  

  • Futura timelapse

    From rollout to liftoff: the Soyuz launch with astronauts Samantha, Terry and Anton in 90 seconds

  • Proba-3 double-satellite nearer to space

    A pair of satellites flying in close formation to cast an artificial eclipse is now being turned into space-ready reality by ESA’s industrial partners.

  • Sixth launch for Ariane 5 this year

    An Ariane 5 has lifted off from Europe’s Spaceport in Kourou, French Guiana and delivered two telecom satellites into their planned orbits.

  • Orion test sets stage for ESA service module

    Today’s flight and splashdown of NASA’s first Orion spacecraft paves the way for future human exploration beyond low orbit powered by ESA’s European Service Module.

  • European astronomers spot faint asteroid

    European experts have spotted one of the faintest asteroids ever found – a chunk of space rock thought to be about 100 m in diameter beyond the orbit of Mars. 

  • On solid ground

    Lovers of architecture and history can rest easy: the stability of historical buildings can now be monitored in real time by a new technique with its roots in space.

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