NASA

330 posts
Decade-long time-lapse of the sun

NASA’s Solar Dynamics Observatory has been taking a picture of the sun every 0.75 seconds for a decade. Above is a time-lapse of the resulting 20 million gigabytes of data: This 10-year time lapse showcases photos taken at a wavelength of 17.1 nanometers, which is an extreme ultraviolet wavelength that shows the Sun’s outermost atmospheric layer — the corona. Compiling one photo every hour, the movie condenses a decade of...

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Map shows how NASA satellites collect global rain data

We can download data as a single snapshot in a single file, but oftentimes that data is generated piece-by-piece. In the map above, NASA shows how they piece together rain data with a network of satellites: The ten currently-flying satellites in the Global Precipitation Measurement Constellation provide unprecedented information about the rain and snow across the entire Earth. This visualization shows the constellation in action, taking precipitation measurements underneath the...

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Arctic ice melting

One way to gauge the amount of ice in the Arctic is to look at the average age of the ice. From the NASA Scientific Visualization Studio, the map above shows the estimated age of ice on a monthly basis, going back to 1984: One significant change in the Arctic region in recent years has been the rapid decline in perennial sea ice. Perennial sea ice, also known as multi-year...

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Map shows long-term record of fires around the world

For the NASA Earth Observatory,

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Opportunity rover’s path on Mars

After a most unforgiving dust storm on Mars, NASA ended the 14-year mission with the Opportunity rover. It was originally only planned to last 90 days. Jonathan Corum, for The New York Times, mapped the little guy’s journey over the years. Tags: Jonathan Corum, Mars, NASA, New York Times, opportunity

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Real-time speed of light from Earth to Mars

Hurry up, light. We’re gonna be late: By James O’Donoghue, the animation shows the speed of light in real-time. The distance between Earth, the moon, and Mars is to scale, but the locations are scaled up so that you can see them. See also the animations for Earth to the moon and of light orbiting Earth. Tags: light, NASA, scale, speed

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Inside Hurricane Maria, a 3-D perspective

This 3-D view inside Hurricane Maria, from NASA’s Scientific Visualization Studio and NASA’s Goddard Space Flight Center, lets you see the data and the lead-up to the storm in a neat 360-degree view. Be sure to watch it on your phone or with a VR thingy for full effect. Disregard the questionable color scale. Tags: 3-d, hurricane, NASA, VR

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World map shows aerosol billowing in the wind

Using a mathematical model based on satellite data, NASA shows an estimate of aerosol in the atmosphere on August 23, 2018: The visualization above highlights GEOS FP model output for aerosols on August 23, 2018. On that day, huge plumes of smoke drifted over North America and Africa, three different tropical cyclones churned in the Pacific Ocean, and large clouds of dust blew over deserts in Africa and Asia. The...

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A transforming river seen from above

The Padma River in Bangladesh is constantly shifting its 75-mile path. Joshua Stevens for the NASA Earth Observatory shows what the shifting looked like through satellite imagery, over a 30-year span. Kasha Patel: The upper section of the Padma—the Harirampur region— has experienced the most erosion and shows the most notable changes. The river has become wider at this section by eroding along both banks, although most activity occurred on...

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Maps show spring arriving earlier

From Joshua Stevens at the NASA Earth Observatory: But over the longer term, climate change is causing spring to begin earlier and earlier across the United States. These maps reveal just how much earlier spring is arriving in National Parks across the country. The data were published in 2016 by ecologists from the National Park Service, working in collaboration with colleagues at other agencies and institutions. Griddy. Limited to only...

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