Friday, 03 July, 2020


NASA unveils 10 years of solar activity in stunning time lapse video

NASA unveils 10 years of solar activity in stunning time lapse video NASA news: Watch this hypnotic time-lapse of the Sun from 20 MILLION gigabytes of data
Kristine Garrett | 28 June, 2020, 20:09

The time lapse footage is believed to hold much value for the scientists who are interested in knowing about the functioning of the Sun and rise and fall in its activity during its 11 year solar cycle.

NASA has released a stunning 10-year time-lapse video of the Sun, condensing a decade of activity into one hour.

Equipped with a trio of sensitive instruments, the SDO's brilliant ten-year time lapse short spotlights photos taken at a wavelength of 17.1 nanometers, which is an extreme ultraviolet wavelength that unveils the Sun's outermost atmospheric layer, the shimmering corona. The Sun has been under the watch of NASA's Solar Dynamics Observatory (SDO) for over a decade. Standing guard in an inclined geosynchronous orbit in space around Earth, it has massed over 20 million gigabytes of data over the last ten years and enabled countless discoveries about the intricate workings of our 4.6 billion-year-old star and how it influences the entire solar system. "The images where the Sun is off-center were observed when SDO was calibrating its instruments", the space agency said.

In the post's caption the agency wrote that "NASA's Solar Dynamics Observatory - SDO - has now been watching the Sun non-stop for over a full decade".

During this cycle, the Sun swings between so-called solar minimums and solar maximums that see more or fewer sunspots and solar flares. The meticulous capturing of the Sun's photographs, observing each and every change in the Sun can be gauged from the fact that the SDO clicked a photo every 0.75 seconds, according to NASA.

The organisation also explained that the dark frames in the video were caused by Earth or the Moon eclipsing SDO as they pass between the spacecraft and the Sun.

A longer blackout in 2016 was also caused by a temporary issue with the probe's AIA instrument. Musician Lars Leonhard was on board to compose the theme titled 'Solar Observer'.

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