The old man in the Sun

While everyone has seen what looks like a man’s face on the surface of the Moon, nobody has ever seen any on the surface of the Sun… Nobody except SDO.
In the video below, a set of pictures taken by the Solar Dynamics Observatory Spacecraft shows the Sun in different wavelengths. …

Sunspot 1158 unleashed two strong solar flares

Over the past few days, the Sun has been pretty active, especially one region, sunspot 1158: it produced two strong solar flares in the last four days.
A solar flare is a large explosion in the Sun’s atmosphere, releasing up to approximately 16% of the total energy output of the Sun …

Tomorrow, we will see the entire Sun

Tomorrow, February 6, 2011, we will be able to see the front and the far side of the Sun, simultaneously, for the first time in history.
Probes to observe the Sun
Stereo (Solar Terrestrial Relations Observatory) is the third mission of NASA’s Solar Terrestrial Probes (STP) program.
The two nearly identical spacecrafts were …

Global eruption on the Sun

On August 1, 2010, an entire hemisphere of the sun erupted. It consisted of over a dozen shock waves, flares, filament eruptions, and coronal mass ejections that covered half of the sun’s surface and took place over a period of 28 hours. It was big, really big.
The event was recorded …

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