The Solar Dynamics Observatory page is NASA's front row seat to the Sun. Open the data page and you see the latest images of our star taken in many wavelengths of light, each one revealing something different: sunspots in one, glowing loops of plasma in another, flares in a third. The images are updated constantly.
Pick a wavelength and look closely. In some views the Sun is a calm orange ball; in others it is a seething, bright-edged sphere with arcs rising off the surface. It is one of the closest views of our star that you can get without a telescope of your own.
SDO launched in 2010, and the data page is an official NASA science site, so it is practical rather than flashy. It works on mobile and is a nice daily check-in alongside /site/apod. More to explore in /category/science-space.
Tips for getting the most out of it
- Compare the same moment in different wavelengths.
- Look for bright arcs near the edge of the disk.
- Check back later in the day to see changes.
Questions about Solar Dynamics Observatory
What is the Solar Dynamics Observatory?
The Solar Dynamics Observatory is a NASA mission that watches the Sun continuously. Its website publishes constantly updated images of the Sun taken in many wavelengths of light. Plan on about 5 min. It works on phones. You can find it at sdo.gsfc.nasa.gov, and we check the link daily.
What can I see on the SDO website?
You can browse the latest images of the Sun, including sunspots, glowing loops and flares, depending on the wavelength you pick. The images update regularly, so what you see reflects recent solar activity. Plan on about 5 min. It works on phones.
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